As long as you are able to differentiate between bad language (skills), cultural differences, and bad behavior. On Reddit that’s basically the same. Many things may sound harsh, but are often just expressed frustrations, voiced in an imprecise way. And often, nuance is lost in translation. Many foreigners aren’t used to nuance like Americans are.
Many Europeans won’t hold back. Like, you tell your neighbor that he’s an idiot directly to their face. Out of love; how else would they know. Apparently, none of their friends told them. Poor fellow. Just an example. I’ve learned that Americans won’t do that, for whatever reason. they would just call them idiots wherever they are not around, and keep smiling. ;)