A one week ban on the first message is clearly gatekeeping. What a bunch of jerks. A 1 hour ban would have been a lot more appropriate, and escalate from there if the person can't follow the rules.

Don't even get me started about how dumb rule 2 is, though. And rule 3 doesn't even work for normal English as many things are abbreviated, e.g. this example.

And of course, you didn't greet and wait, you just put a pleasantry in the same message. Jeez.

I'm 100% sure I'd never have gone back after that rude ban.