Do you allow video responses (given that it's the same game you are playing)? If not, why is it a bad thing?
I will allow video responses only if they're something that adds to the content of the video they're posting it to. I think this has only happened once. I don't remember which game it was but I think somebody made a video of themselves playing a song from the game that I said in the video I liked and posted it as a response. That's probably been the only one I've allowed in a long time. I don't post people just doing their own LP of the same game, because it's not really a "response." It's just using my video as advertising space.