Roshan wrote:
Can the Media Wiki can be customized to this type of registration? If yes, I guess, the wiki admin can do it.
Yes, it can be done. If I remember correct (Anurag, correct me if I'm wrong), we've tried that too. The spammer just registered with one of those free email addresses, did his dirty work and left never to return.
The current system works, and please don't upset it. I don't understand why some people want everything to be their way. Is it that inconvenient to drop a mail to the list to ask for a login ID?