Board Thread:Support Requests - Community Management/@comment-25876622-20160810011210/@comment-25876622-20160810145524

452 wrote: Yes, the "Prevent logged-in users from editing from this IP address" setting is for when you're blocking an IP, and does nothing when blocking a username. When blocking an IP, unchecking that box displays "anonymous users only" in the block summary. Doesn't the system automatically determine the IP of the user when using autoblock anyway? I assumed it would use this IP to prevent account creation (which doesn't work, as I tested on myself).

I also just tested blocking my own IP using the "Prevent Account Creation" option. I could still create an account.

I guess there is one solution: I would need to
 * 1) Find the IP of the user (wikia staff request, I think)
 * 2) Block that IP with
 * 3) Checked: Prevent account creation (which doesn't work)
 * 4) Unchecked: all others including Prevent Logged-in Users

Since account creation prevention doesn't work, the user can keep on creating new accounts. At least now I know that "Prevent logged in users" only works when blocking a IP.