Music is
bad, loud and intrusive.
I feel any crawl LP ought to be fairly chill. This means music(if you play any), commentary, etc. Aside from that the only thing I can offer is that crawl is not a very LP-friendly game by nature(perhaps a bit more friendly to screenshot LPs like the ones that have been done a couple times on Something Awful, but that's a rare model now compared to YT stuff), and I think the personality of the person playing
really has to carry as a result. If I could somehow get someone like Northernlion to stop playing BoI and start playing DCSS, I would watch that, but aside from that the only crawl videos I think I am willing to watch are skilled people doing something special/difficult-long streaks, highscores, speedruns, etc. I don't think I'm alone in this, and it's not really a dig specifically at you. Sorry!