Do StackExchange network sites allow users to change their display name? Because in question discussions the display name is referred to by other users in comments. If the user changes his/her display name, the comments will not be clear.
Yes; you are allowed to change your display name every so often (about once a month).
Yes; if you change your name, comments are not edited to suit your new name.
Suggestion: Don't change your name very often if you're worried about comments no longer applying clearly.