It is not a bot that censored your post but the lemmy.ml server itself. For some reason lemmy.ml (and I think lemmy.world) filter some words from posts. If you don’t like that you’ll have to change to another instance.
I am using feddit.de and I can write “chess bitch” if I want.
feddit.de is not offline. It has problems, yes, but it is still online. :)