I really enjoy PoE, which I've been following since beta, but only actually started playing right after D3 came out.
I'm enjoying it a lot but the lag and constant desync is killing all the fun. It's getting so bad that I now have "/oos" macroed on my G510 keyboard.
Part of it is my fault, I agree, since I play a marauder (which seems to have the most desync) and I'm in south america using the US server. At least I'm at GMT -3, so I can play early in the morning while the US people are still sleeping.
But even during odd hours (really really early or really really late) I still get a lot of lag and desync, especially in crowded areas, or with too many people in my party.
The issue is NOT on my end. I have an i7, GT 650M and a 20/5 Mbps cable connection and other online games run fine (Rift, SWTOR, LotRO, etc.).
I really wish this would get fixed, or at least under control, as I've noticed it's been getting worse lately. If funding is the problem, start charging $15/month or something, but the way it is right now, I don't see many players keeping up with this problem for much longer...