When I say long run, I am refering to a very long period of time or a large sample size, over 50 or 60K hands for the numbers to really break even.
If those players were willing to see a flop that many times, it stands to reason that they will win more pots as long as their post flop play is fairly decent. Think about how mant times a flop completely misses you with your A-Ks, but hits the asshole UTG perfect who limped in and called your raise from LP with K-7o. It sucks because you had position and he shouldn't have called anyway because he was out of position and had a shitty hand, but he called and was willing to pay the price of your raise
to see the flop. During any one session you'll see flops constantly that would go perfect with hands like 3s-9c, 10-Ks, 5-7s, and every other hand you would never play imagineable. At low limits its easy for a player to fall in the trap of "well, this is only costing me .50 cents to see every flop, so what the hell, ill probably pick up more pots that way," and it works sometimes, especially playing micro-stakes LHE, because even when you tighten up and only play those premium starting hands and the flop hits you just right, you can't push all-in and bust them out.
Honestly, you don't reallly escape the "No Foldem Holdem" crowd until about 5/10, sometimes some 3/6 will be tight enough, but then you run the risk of sitting down in a rock garden. At 1/2 and 2/4 you may not have the same guy doing this every hand like you saw your last session, but you can almost gaurantee that at least one player on every hand will be in the pot with some junk you are just amazed that they even played. Like with any obsticle, you have to stick to your style of play (as long as it is proven to be successful) and not let anyone elses actions alter your game, and eventually those flops rewarding the K-7 and J-9 will fall to your premium hands and you'll get paid off.