I don't agree at all. Swear words are just words. If they aren't directed at you personally, you can only be offended by them by
wanting to be offended by them. They're a part of everyday speech for many people (some more than others) and they aren't necessarily meant aggressively or offensively, so unless you wrap your ears in cotton wool you're gonna hear them, like it or not!
If people are using
really filthy words (and no, there are no set-in-stone rules here but we all know what they are), then you could be justified in complaining. But I haven't seen any of that here. This is the internet and, more importantly, this is a piano site, not a kids' site. I don't doubt kids look at this site but from what I can tell, more of those who
post at least seem to be 16+.
You may not personally like swearwords, but that doesn't mean that the people who post hear are being excessive or unreasonable in their use of them. If you hate them that much just avert the eyes and read on.

Jas