anyone know why mylot does delete discussions?

There are many different reason why mylot deltes posts some exapmples are if there is a referal link listed, if the posts is copy and pasted with no credit given to the real writer, receipes, jokes or a post that just has no substance to it like what is your favorite color. Then there are posts that no one has no idea why mylot delted them it can be a guessing game at times.