If so, can you unblock yourself whilst blocked?
Yes, you can unblock yourself once block yourself.
Pikapika200 wrote: how do i block myself?
You guys are bumping this too old thread so can you start a new thread?
but someone without such right was able to do so on pretty cure fanon wiki (https://prettycurefanon.wikia.com/wiki/Message_Wall:Pinga_Bird)
No, the account was disabled. That user decided to "disable" the account. It's different from blocking.
Can you start a new thread? It's couple of months old.
but someone else asked that user "why you block yourself?"
No, it's a common misconception. Some people thought that disabling an account is blocking yourself, but that's totally incorrect. Disabling your account means that you don't want to use your account anymore. If you head to that user's block log, you can see that there were no items match it log. It means that the user's account wasn't blocked on that wiki.
Indeed. You can read more on disabling accounts here.