..? As opposed to higher stakes where you should play everyone? You can probably just play anyone at these stakes, I doubt it's worth sharkscoping them, let alone getting a suscription or whatever if you pass your limit of 5
I think I've played almost 250 $5er and a few $6er and I've probably played the same player twice, re-matches not included ldo, just ONCE. I'm color coding every player so i'm pretty sure that's very accurate.
The player pool is so huge on this level that there's no difference whatsoever whether you know any "regs" or not, furthermore, it doesn't even matter whether you sit first or join.