I usually report genuine bugs. They even tend to get fixed quickly.
Sometimes, however, the bug is apparently in my reading comprehension.

I think I have submitted at least two or three of those. I wonder if the staff have to wait a while before replying in these cases, just so that they can remain nice in the email. They don't want to say "Can't you read? It says right here...".
A silly example is when I thought it was a bug that the Serpent bloodline of the Sorcerer suddenly got a snake familiar. If only I had turned the page and read the next sentence.

In my defense, it is worded stupid.