First of all, I want you all to know that I'm not bothered about spamming on my registration page. I want to aim for something like this.
In my Wordpress Multisite Website, I want users to register their domain/username, but the thing is I don't want to send any email confirmations in their emails, I want the users to be auto activated and redirected to "wp-activate" and show them their username and password after registering.
How can I do that?