While I was looking around,I happened to look at the profiles of some people. What I noticed is that some of them had a barrage of spam comments from the same people.
I am not talking about friendly comments and chats.It was like two pages worth of spam.
Hence,I recommend: A deletion button
I understand the existence of the comments,but I would suggest this option to allow the owner to erase specific comments he deems inappropriate.But,to keep the comment's true purpose alive,how about granting permission to erase only after a user has posted more than one comments(and setting a minimum of comments per person to exist)