My uploads are very plain, not encoded oddly and just work. I do know folk that are upset about changes at Google here and are unwilling to change video formats (encoding.) They are usually pretty vocal and write often "I didn't change a thing."
I started not being able to upload Video to my Main YouTube account. I went through YouTube Help and didn't change video formats.. Since then on the YouTube Help Forum people around the World are experiencing this also and some have been blocked out of their YouTube account for trying to upload that same file with different formats to the same account. Anyone else have this issue? A lot are waiting on YouTube to answer requests for Help.