Special:Badtitle/NS90:User talk:A300154507/Did you forget a previous account?

I note that we have an account for a user called "300154507a", who made just a couple of edits during a single session a few weeks back. I doubt the similarity of the usernames is a coincidence, so I'm wondering, did you forget you had an existing account? It's not a problem, and you're not in trouble or anything, I was just wondering, as well as wanting to know if you wanted to keep both or dump one.