[NMcNasty]

You're right about hands like QTo and KTo needing to win with top pair sometimes to be profitable, I shouldn't have said top pair is marginal at best because otherwise KTo wouldn't be much better than something like 52o.

Still, you must be tight postflop. Against five or six other players there's no way you can figure to have five outs when drawing with second pair. You should discount your outs to two. Also raising with straight draws or overcards (especially overcards) against 5 or 6 other players is chip spewing. There's just no way you will be getting these small stakes loose players to fold.

Ideally if you play something like KTo or Q9o you're only going to be continuing on the flop somewhere around 15% of the time. If you are continuing 30 or 40% of the time or more, the "reverse implied odds" theory sets in and you're just paying off the people with sets, straights, and flushes.