I am currently playing on a 10nl table for the hell of it, and for some weird reason the players seem to make more mistakes than at 2nl...not to mention I've doubled my bankroll in a few hundred hands...

1) Is this because the public i.e. the regular pubgoing punter is more likely to play at these levels as they just want to earn quick bucks rather than grind?

NB I will be returning to 2nl.