That address is the NastyMining address, not the donation address so you don't receive payments from that address.  Distributions would come from NastyFans and all the information is on the original post of this thread.  Since NastyFans takes payments for not only donations, but also NastyShop sales using unique addresses, obviously coins won't always come from only 1 address.

Every seat gets the same amount of distributions (unless they set their online seats to not receive distributions).  It's all public.  Anyone with online seats on NastyFans.org can direct their distributions wherever they want, not just to minted seat addresses (some people don't understand that the minted seat coins came after seats as a fundraiser and don't understand that online seats are the organization, while minted seats are a product I created that utilize online seats). 

For anyone too lazy to read the OP, here are the links...

Mint.json - Here you can see the amount held under the threshold for every minted seat, the creation date, and the amount of seats tied to the coin.  You would need to check the corresponding address on the blockchain to see what has already been sent.

Distribution History - Here you can see exactly how many distributions have gone out, the amount each seat received, the date, and total amount of distributions.

I don't know of ANY other Bitcoin organization in the world that provides as much transparency as NastyFans, so my advice would be to read the OP and look at the data that is provided.