I think you are fine, some people curse all the time, for some it is almost like a sport, anyway, there is a free shield from Captain, plus there are a ton of techniques to defend yourself, like the one mentioned by @noOne.
Also people say all sorts of bad words, including putting curses and bad energies on themselves, like wishing they were dead and all sorts of low/bad vibe words, so I would not worry about random keyboard warriors lol.
Just a sec.