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Should 'Hi', 'thanks,' taglines, and salutations be removed from posts?
It seems that certain kinds of social graces are not considered appropriate in a question, for instance, in this one, the OP concluded his question with "Any help appreciated", but it was removed by an edit, and in general I get the feeling that one shouldn't put things like this in a question.
Certainly this kind of remark adds nothing to the question, but I generally add them because it just seems gracious when asking for help. Note that I'm not talking about "Thanks" or "Me too" posts/comments added to the post by other users, I mean appreciative remarks in the original question.