That's when you create a new account. The obsession with linking your real life to your online life is the most toxic change to internet culture since the web started.
I understand many people rely on social media for professional networking but there's absolutely no reason why you have to use this professional networking account to trade verbal jabs with people on contentious topics, or confront trolls, or start political debates, etc. Make an alt if you want to slum it in the comments section. Again, this was common sense 20 years ago, and now seems like it's lost knowledge.
Seconded.
As the saying goes; "What is the difference between posting something on the internet and a tattoo on your arse?..... It's easier to remove the tattoo."
Because that personal information you posted or 'offensive' joke you posted when pissed will stay around forever to haunt you.