You have a point, though there's no need to. I know I wouldn't, since I can't see what benefit would come from it. Specially if they figured it out between arcs (since there were no discussion threads active, or nearly none at least.) But probably at least a few would've said it and taking into account how many people would've needed to figure it out for that to account for the reduced number of comments, it's strong evidence against it. Sorry, I guess I didn't think it through too much.