Finally caught up on the last few episodes. Good stuff! I like the interactive "vote for an action" angle you've got going on, though the vote doesn't really seem to affect anything other than the opening joke. I'd like to see the vote have more impact on the story, but I recognize that would be extremely difficult to do (as you said, you filmed them as a block).
Anyway, keep it up! And you're in very good company on Zombie Orpheus, so hopefully that'll get some more viewers for you. And now I really want to get a d&d game going!
Oh, as for the rope trap, I would do a creaking sound (rope tightening, about to spring) followed by a general air "woosh". I'm more a music guy than a sound fx guy, but if you get stuck creatively, feel free to drop me a PM and maybe I can help out. Either way, keep up the good work!