I know that the answer for a normal user is not.
What can be done?
I know that the answer for a normal user is not.
What can be done?
There is no way this can be done by users, since it may be a very subjective approach to moderation which is not visible to other users. Instead, it is suggested to either flag the users' posts or comments - anything that would get the attention of a moderator - and explain the situation.
Also see: Flag abusive users