I'll post a response...I'm not shy!
I don't think all Yorkies are cute, just as I don't think all babies are cute. Sorry, just my HO.
My mother is the same way. She used to tell me that she can't lie to a mother if she doesn't think her baby (human) is cute. She'll say, "Oh, look how small his/her feet are!" That way you're still complimenting them, and not lying!
As for YT, if I think your furbaby is cute, I will tell you. If I don't think so, I won't post that I think he/she is I just won't say anything. And...if I don't post regarding your furbaby it doesn't mean I think he/she is ugly, it just may be because I'm lazy or didn't read your post!
Okay, did I cover all avenues?
Oh, forgot to say that I don't think I found any butt-ugly Yorkies on YT yet!!!