Well, really the small error about it being 'EF-s' or otherwise wasn't the problem with the OP's post.
The problem was that he didn't really ask a question other than "Has anyone heard of this lens". That's why the thread has run whimsical, without any real information.
"Yep, I've heard of it." would be a legit response. My assumption is that the OP will return and ask us just what it is about the lens he is interested in knowing.
I don't think its much of a stretch to think the OP was looking for opinions on this lens even if he didn't specifically ask. I doubt he was just trying to find out if people had heard of it. And by the way what he said was "anybody knows about this lens?" which implies he wanted feedback based on experience with it.