What are the grounds for Mylot to delete our started discussion?

That is a million dollar question that many members think they have to answer to but I am not sure It is suppose to be topics topics that can be answered in 2-3 words and do not lend themselves to a descriptive Now if that is true this topic would be deleted why because look at the topic For example "I have no idea why they delete " Now I am not sure but i did answer didnot I Sorry I wish I knew because i only respond and in May i had 300 credits deleted Good Luck You will never know

No clue really
I do know that discussions that are in direct violation of the guidelines can be deleted.
However I have seen many discussions that were well within the guidelines that disappeared.
I think that sometimes the moderators that read reports dont really investigate they just start deleting to pacify the reporter.
It is completely unfair but that seems to be how it is around here.
Somebody is not doing their job.