Currently we have a 0% pool fee and pay the transaction fees. So a lower limit would mean more transactions and more fees that we have to pay. It's already lower than most pools. A hash rate of 20MH/s can earn that much in a couple days. But if others request a lower limit, I'll consider it.
The withdraw limit of 0.05 is fine for me too.
Noobpool, just to let you know, a couple of days ago I opened a topic in the italian section of the forum to promote your pool
https://bitcointalk.org/index.php?topic=2017164.0