I'm not totally convinced he has to have aces here - most aggressive players at 2/4 would raise 3rd with aces. I'm not sure that someone who plays almost every hand would think of the slowplay, especially because Roland is probably the only person playing at 2/4 who would fold his queens on 3rd if reraised.

Anyway, 4th is a raise in my opinion. I would call 5th, because I assume that people take raises into account when deciding whether to bet. Admittedly, this does result in leaving money on the table too often.

7th is a call for the good of society, information and because he might be a total nutter.