User blog comment:Port5/"Edited by Wikia Contributer"/@comment-3174223-20110814182308/@comment-4085927-20120213073328

Because often people are only fixing a small mistake they came across and they don't see a need to waste time making a account. Like if you only want to add a comment or something small and have no real intention to come back an account isn't needed.

Some people also like the fact that its not linked to them so to speak, some users like being "anonymous" and they feel editing with an ip gives them that. But it doesn't.