This wouldn't be a bad feature to be honest, even if they set up a double confirm feature, that could also work.
With the double confirm feature, it would ask if your absolutely sure you want to continue with making the account and have you confirm it a second time. Like you said, it may not stop it completely, but it could help.
English
-
I agree completely. I just tried to log into my new PSN account and accidentally created a new one. Now I cannot link my original intended account with my PSN login...
-
Mine is the exact opposite, I've been on an Xbox login for years and crap...