The auto swear filter kicks if you type a swear word more than once in the same sentence or you've been auto warned/auto muted already once in the previous 24 hours by the server. Its auto modded (not a person).
kicked for swearing... Really?

Heh, once this happened to me on another site. I typed so fast I didn't have time to read/notice the auto warning before hitting enter again and was banned for 24 hours.
Was telling Dave Chappelle joke (not very clean).

Love it, censor the comments but not names.
STUPID.
The username was censored to prevent this happening again.
Yeah, I'm done with this site.
Ratings are screwed up and too easy to game, and too many of my games have flaws.
This last match I lost on time because the computer wouldn't let me move to D2.
Done.

someone wrote in Subrian &^$% you .. and said thinks about me that I was something to do with a monkey?!?! (google translator) .. I wrote back and said NO.. *$&% you! And I was kicked!!! there is a bias for the English language only?! This is ridiculous I am the victim.

I do not swear even by typing it in the cheating way with %#@$ but i agree being kicked with out warning makes the person who is booted the victim of a society where we feel the need so strongly to be politically correct that we can not accept someone when they get upset. What human emotion will be regulated next?

Agreed. Just got kicked for spur of the moment saying &^%# mouse slip lucky &^#%#$d. I slipped and lost my queen in even position. I was mad. Sorry Im too emotional

hahaha I got kicked for saying I am bad using expletives lol but wasn't swearing at my opponent I was just frustrated by my lack of skill.
I am a noob lol

Your particular example is used in quite nasty abuse, and the autofilter doesn't try to interpret it in its context. So don't use it.
I find it interesting that the two biggest complainants in this thread hung around for a couple more years - I guess it wasn't that much of a big deal for them after all.

Playing a game some time ago, I made a dumb move, (not unusual). I typed in chat "cock up". bam ...gone......kicked. Now the expression "cock up" is slang for stupid mistake. It's used by politicians, TV announcers, even the royal family have been heard to use it in public, notably, Princess Ann. There seems to be some very puritanical, sheltered people who make the rules on here.
I agree that it's used all the time in the UK, newspaper headlines, tv news etc. Nobody takes any notice of it. Obviously has a stronger meaning in the USA.
So i was playing against a guy with the name azz_kikkr. After he made a stupid move I typed "azz kikkr, really?" Promptly got kicked.
Nice moderating chess.com