Discussion pages are an integral part of a wiki; they are a place for users to decide which direction an article should go in, what to include and not to include, and to place any other kinds of comments. User talk pages are also important, being a place where users can communicate about a wide variety of things, as well as receiving warnings from other users regarding unhelpful edits, and messages from administrators about blocks. These comments may end up outdated and seem useless; however, there are many reasons to keep them.