Fun little idea: allow members to use vanity usernames, temporary names with a timer/chosen amount of days.
So we can be DinowSpooky in October for halloween and DinowSour for Skin Fight's team Sour in June 😁

Maybe limit the frequency somehow, make sure they also have to be unique, maybe make it so they have to be similar to the original username and make a rule that you can't use it inappropriately, including pretending to be another members. Give moderators the tools to remove a name if needed.

And then have the real/actual username mentioned in the hover-bubble and on the profile page, in a smaller size below the current vanity name. Maybe it'll also encourage members to keep their original username more often than they do now. 😊