I guess the db site are not based on Nick as a primary key, but a long time ago there was an italian member who wanted to change... his sex (he had a male nick and wanted to change it to female)
It is true that Erel is almost all-powerful, but because it is an alien, not God.
(Probably it is not a technical problem, but a choice).
Just contact support as Don suggested, since you are new member and only have 6 posts so far.. otherwise it would be a problem for database and search.