It might help if you look at it as its their problem, not yours.

People have their issues and take what you post personally even if it’s nothing to do with them or you aren’t even talking to them. So they project due to their own issues.

Like somehow you not liking some music or you not having money to buy audio system triggered them and they got bent out of shape and lashed on you. You can emphasize with them but ultimately it’s their responsibility to manage their own triggers, not yours.

Also online you don’t really know who is who. You don’t even know if they are sober when they post that stuff. You have never met them.

As unaluna said don’t let aholes grind you down