I recently started playing counter strike source again online, just for 10 minutes of fun at first (to see if it would still tick with me). I randomly picked up a server and the ambiance was cheerful and nice. I noticed the rules said "no profanity, have fun" and indeed people were mostly polite.
I tried another server at random a bit later and there was more insults, along with a lot of taunting.
I switched back to the first server and have been regularly playing an hour or two every three days and there is a difference with other servers. Some random people coming and throwing insults, even mild ones like "fuck you" or "you son of a bitch awp" get insta ban and it makes the whole session a much better experience. Maybe it's a safe place but playing with polite people is more enjoyable to me now than playing with insult gatlings.
Language is political. There are many meanings to words, depending on context but I do think it's not innocent to swear in front of people or to use swear words to look cool. These are still swear words and insults and their first original use is to provoke or taunt or display aggression. Even if it's only used for "this is album is the shit !", it's still a (childish) provocation. Reminds me of the brogrammer fad.
FWIW: I get regularly owned on this server and I am at the bottom of the ranks but it's still more fun and enjoyable than other servers I tried where I can reach the top but... it's not a nice place. I think online servers are like bars.
Side-note: I was pleasantly surprised to see that "gg" is still thrown around after rounds :). It's way better than "git gud" that came later and that I find horribly toxic.