I took a buddy with me, huge horror fan (he gave me the Jason costume in the first place), and he really enjoyed it, judgin' by his, "Oh, shit!" "Oh, fuck!" "Oh, he's goin' to get axed!" comments durin' the movie.
Exactly what was going on in my theater.
These type movies tend to be interactive and that seems acceptable with these slasher flicks. I'd be pissed if someone was talking about what Joker might do next in TDK
but not "Oh, hell that wood chipper is back in play" isn't a comment that irritates me during this type movie.