Can my account get deleted by a moderator?
Yes it can, people's accounts can be deleted if moderators think you are under aged to be on this site or if you continue the same trend of rude, unhelpful, inappropriate behavior.
Yes, if you continually break rules your account can be deleted. However, you would be given warning before this happened.
Yes-mine has many times
Yes. Sadly, mine has been deleted about 6 or 7 times.