Youtube – How to search for the YouTube channel videos by tag

The closest thing I can think of is a greasemonkey script to hide the video when username is equal to whatever expression you want, however the page would have been loaded so technically the uploader would stick get a click through link.

Your question is split into two parts, and so shall my answer. :D

Firstly, you don't necessarily need to put your real name (although it is a requirement by Google). You can just put your nickname and make it look convincing that it is a name, and you should be okay with it.

If you don't need Gmail, you can just follow the steps here and you should be alright.

Also, you don't necessarily have to link your Youtube account with your original Google account. While it is the default for new accounts created, you can simply disconnect it in your account settings, as stated in this question.

Secondly, did you check if you disabled Javascript when browsing Youtube? I am not exactly sure what the problem is that results in your "screen fading away", but do check for the common browser issues regarding the browsing of the site. If you still can't fix it, I would suggest contacting Youtube directly to ask your question so that it can receive more professional help.