I was chatting with some friends on in a public Douyin (an app of the TikTok company) chatroom. We were doing voice communication. Suddenly a man came to our entered the chatroom (everyone can join us) and said some bad words. He left before the host was going had time to/was able to ban him. I then said (after the man left):
He's just here just to mess around. Just Let him go.
Are my sentences natural?
See above. You're tending to waffle a bit on your recent posts. There's a lot of unnecessary information.
- We don't need to know that Douyin belongs to TikTok.
- Once you've said "chatting", you don't need to tell us it was "voice communication" (unnatural anyway).
- By adding "public" in the opening sentence, you can dispense with "everyone can join us".
- Using "then" means you don't need "after the man left".
You might want to be clearer about what sort of "bad words" he used. That sentence is one that I might expect from a small child who doesn't know how to use "swear" or "curse/cuss". You could say that he came in and swore. You could say that he came in and shouted insults or slurs.
Your sentences are OK with my changes. I'd say "It's just another troll. Ignore him".