Because of so many imposters, we need a delay on changing the names. Like, you can't change again for another day. Also, names within one letter similar to a currently used name, the game rejects it.
No, not within one letter. Maybe if it's EXACTLY The same, then the game would reject that.
And, im no expert, but wouldnt the names then have to be saved on a database, and wouldnt the database be on badspot's computer? That would be a lot of clutter for him.