Like I said, Clone and just copying an idea and working it into their own concept is two different things. This just seems to me to be the former. As for Doom and CoD, they are different enough for me to not consider them clone (in fact very different, not even a CoD fan).
Just putting out my thoughts, since it seems like most people seem to think they are hilarious and that they are "good" for doing it. Didn't mean you were. And Ironic is what I'd view it as too.
Never seen that forum/website but yea, I've read a lot of that, in other places as well. That being people thinking it's very clone-y.
Just saw the TB bit. And, it's fine with me if they took ideas, and worked it into their own thing, or/and enhanced it. Lots of people didn't seem to think so though. Personally, didn't play either game, just read up on it a little after hearing about this piracy thing.
Oh, and I do find it humourous. It's a smart way of dealing with pirates, persay. Not the first to do so. I believe one of the LotR games had something similar, where you get to a point and it becomes unbeatable because your guys just die off mid battle or something. Not entirely sure on what it did, myself.