AITA for telling on my sister after she refused to take down an Instagram account that was made to make fun of me?

A family dispute erupts when a woman discovers her 18-year-old sister created a secret Instagram account to mock her, their cousin, and friends. Confronting her sister directly, she demands the account’s deletion, but the sister refuses and continues the ridicule, prompting the woman to tell their mother, leading to the account’s immediate deletion.

This isn’t just social media drama—it’s a story of broken trust between siblings. The sister calls her a “snitch,” but the woman feels the behavior was unacceptable. Reddit largely supports her, condemning the sister’s immaturity. As tensions settle, the story reveals the consequences of online bullying within a family.

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‘AITA for telling on my sister after she refused to take down an Instagram account that was made to make fun of me?’

My sister has recently created a new instagram account that she only lets her friends follow, I thought nothing of it but one of our mutual friends sent me a screenshot of the account. It was nothing but posts about her talking s**t about me, our cousin, and a couple of her other friends.

I went to confront my sister about this and basically told her if she has a problem with me she can say it to my face. When I showed her the screenshot she said she can saw whatever she wants about me or anyone. I told her to take down the posts or the account, and my sister told me that she won't do any of that.

My friend recently sent me another screenshot and it was her full on her going over the full conversation we had and her talking s**t about me again. I knew I wasn't gonna do s**t so I straight up told my mom that she was making fun of me on an instagram account, my mom nearly tore her head off and she had to delete the account in front of her lol.

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My sister called me a 'f**king snitch' and said that I had to go get mommy to deal with her issues. I just told her to not talk s**t on me and this wouldn't have to happen.

Edit: if the account has just a couple close friends I’d me mad but wouldn’t do anything. But it had 35 people following it and at that point how private is it?

The OP’s decision to report her sister’s Instagram account to their mother was a reasonable response to online bullying, especially after direct confrontation failed. With 35 followers, the account was not merely private but a public platform for mockery, causing harm to the OP and others targeted.

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According to the Pew Research Center, 41% of teens have experienced online bullying, often from acquaintances. Dr. Sameer Hinduja, a cyberbullying expert, notes, “Online bullying from family members can be deeply hurtful due to breached trust.” The sister’s refusal to delete the account demonstrates a lack of accountability and maturity.

The OP could have explored a middle ground, such as involving a mutual friend to mediate, before escalating to their mother, but the sister’s defiance made the OP’s action necessary. The mother’s intervention set clear consequences but also heightened sibling tension, requiring a longer-term resolution.

To mend ties, the OP and her sister should engage in a mediated conversation with their mother or a counselor, where the sister explains her actions and apologizes. The OP can share her feelings of hurt to rebuild trust. Education on the impact of online bullying could help the sister mature and make better choices moving forward.

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Here’s how people reacted to the post:

Reddit overwhelmingly supports the OP as NTA, arguing that the 18-year-old sister acted immaturely and maliciously by creating an Instagram account to mock the OP and others. Users stress that with 35 followers, the account was hardly private, and the public ridicule constituted online bullying, warranting its report and deletion.

They praise the OP for confronting her sister directly before involving their mother, viewing the report as a justified response to the sister’s defiance. Reddit dismisses the sister’s “snitch” accusation as an attempt to evade responsibility, affirming that the mother was right to protect the OP from toxic behavior.

A-mousy-non − NTA - if she does it again, report her to Instagram for online harassment and cyber bullying.

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Jalli1315 − NTA. Shes being mean, she gets what she deserves

itsthecrimsonchin47 − INFO - how old are you guys?

ThiccBamboozle − NTA - Dude I thought she was like 12 or something and then I read in the comments that's she's 18??. Bruh it concerns me that people like this are legally adults. Ignore her calling you a snitch btw, your parents are supposed to stop your siblings from being cruel to you.

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stardustar − NTA.. but your sister is. That's a horrible thing to do! Sounds like she has no self esteem to be constantly seeking approval for her dealings. Grow up sis!

ohboy-herewegoagain − NTA your sister sounds like a complete a**hole. She is way to old to be that petty about this. I expect that behavior from a child

G0atDrag0n − honestly this whole thing has me ROLLING like damn mate. I was expecting youse to both be like, 14-16 at the oldest. But f**king EIGHTEEN?! EIGHTEEN?! I'm crying thats THE dumbest s**t, if she wanted a private vent account don't have mutual friends on it,

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preferably don't have anyone you know on there,and don't talk mad s**t if you don't want to get hit! Just get a f**king vent tumblr like the rest of us Janet! This is legit so funny, omg. I love it.. NTA.

blackskirtwhitecat − She has far too much time on her hands. You have every right to be angry so NTA. Would she like a defamation lawsuit if her behaviour escalates? Because that’s how you end up in a defamation lawsuit.

Aurynna − NTA.. She’s an a**hole for doing something so juvenile. Like, my nine year old would do that.

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tygertje − Nta. You used your mum appropriately

This Instagram saga is a clash between sibling trust and the fallout of online bullying, as the OP’s report shakes the family. Reddit backs her, condemning the sister’s immaturity and calling for accountability. How do you handle bullying from family? What would you do when faced with public mockery? Share your thoughts below—let’s unpack this drama!

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