i can't remember it very well but one time i was hosting a server for my clan/to promote my clan, so whenever someone would join i'd just ask if they wanted to join
so there was one guy who joined, said hi, i said hi and asked if he wanted to join the clan
then he just suddenly went into rage mode and started spouting random insults and then he left
also one time someone joined when i was hosting something different(idk a freebuild or family RP or something) and said hi and then complained when i didn't drop everything i was doing to greet them within 5 seconds and left