Mega Man Name Changes
From Mario Fan Games Galaxy Wiki
The Mega Man name change fad occurred on the 4th January 2008. It was originally between some friends for MegaMan in Brawl Support, then one by one, other members began naming themselves after different Mega Man characters, and putting the characters' sprites as their avatars.
With the name change system being what it is, all these name changes have become permanent. Many members weren't happy with the idea.