DD12 has a laptop and a phone. The condition to having them is I can do random checks at any time. Realistically I don't check much but I have caught the odd bit of silly behaviour and nipped it in the bud and reminded her what happens online exists forever.
I did another random check today- first in a while- and she's been using the discord messaging app. I saw a message where she was bitching about me to a friend, slagging off my clothes and my weight and told her friend a very edited version of a story from the day before where I'd said I'm so proud of you to her potty training sister, she'd said "you're proud of me?" Sarcastically and I said I was talking to your sister... but of course I'm proud of you too.
I probably shouldn't be surprised and she's right, I am fat, and I also wore an outfit yesterday that I didn't feel great in (after 3 years breastfeeding I'm trying to get back into non nursing clothes and I've never been very fashionable) so basically everything she said in her message was true but I'd be lying if I said it didn't really hurt my feelings. It was just so nasty and her tone made her sound just like her father who I left when she was 2 for this kind of putting me down all the time. I don't know if I just let this go and stop checking her tech or if she deserves a consequence for speaking about me that way. I may just be ranting here but I'd welcome anyone's thoughts on what to do.