What is the deal with vpool.us ?

[DeerApple]

I spent two days mining PPcoins on vpool.us with a 5770 @ 180~ MH/s.

I should have received about 40-55~ coins or so (difficulty was like 80% lower when I started)

Instead, I have a grand total of 5.

Users in the real thread are complaining about it too (with bigger numbers), but I can only post here.

https://bitcointalk.org/index.php?topic=158267.40