I don"t agree jon. I think even at the micros, raising will still thin the field a certain amount. People are learning this game and getting better every day. We always want to stay ahead of the curve. Limping gives no advantage at all. Raising gives us the betting lead, which as we all know is a very strong tool, even in plo.
Also, our raising range is a lot tighter than fishes calling range. Therefore, we raise with hands that draw to the nuts, they call with hands that draw to 2nd best hands. Having swollen pots in these situations is always a good thing.
Im not advocating going mental, but if we maintain a tight aggressive game at these levels, and try and not distance our vpip and pfr too much, then we shud be playing a profitable game.