Nah, I think it's neat for games we know are going to be crap. Like Time and Eternity's NA thread or RK's SaGa 2 thread. Those were good.
You're right, though. It's not our jobs to advertise games. Companies' PR is there for that reason. We just make threads for people to talk about games in and just list media/release dates/pertinent info for a post that people probably won't look at 3 pages in (and I know that from prior experience -- "dude, I wrote that in the op. :/"). If I recall correctly, your Rayman Origins thread from a few years ago was fine and had sufficient information with sufficient media. That's all you really need, tbh.
Oh, I'm all about non-serious OT's. The more the better. I just meant someone specifically trying to imitate the tone and style of the past DA threads for the next one wouldn't be that interesting.