The Custom Blur feature in the YouTube editing area is not at all user-friendly. I tried a few times to use it for obscuring my personal profile information in my Pizza Plan members area.
Finally after waiting forever for my video to be processed for the third time only to find out that the blurring didn't work, I asked in the Telegram group about the best way to get that done.
That is when @blainjones answered and told me to just create a junk account with fake information.
I can do that. I am the owner after all. I am so new that I must have forgotten that I have seen that before at some point.
I was able to get my tutorial done and posted. It was very easy after learning that.