Why are tiktok warnings so strict now?

If you're in the US it's likely either an attempt to keep vitriolic rhetoric at a minimum while the ban is in effect or (again US related) the app is decaying due to no updates (due to ban) that's tripping false warnings.

Probably bots they implemented to auto-delete any "no no" words

Tiktok has always been like this. Are you guys new to the platform or something?

It's seems to be very biased I have seen many many many comments threatening or wishing rape on people and they never get taken down and yet my response to them is always against guidelines and I know this is a very widespread problem I've heard many who have the exact same thing