It seems clear to me that these coins are clearly on their way out. I've seen this pattern so many times....
My question is, who is the one putting those buy orders in at 1 satoshi/litoshi? Why do they do it?
I am not sure about all such cases, but for this particular case you are referring to I think I know the answer:
A lot of 2 satoshis sell order were filled while only a few of 1 satoshi buy order was filled. Why ?
OK, I'm a miner and not a trader, so I'll let you in on the secret. Anyone buying at 1 satoshi can make a round trip through litecoin for profit. Suppose you spend .001 BTC to buy 100000 MRC for 1 satoshi each (.001 BTC /.00000001 BTC/LTC = 100,000 MRC). Now you convert to litecoin at the rate of .00000055 LTC at poloniex. Now you have 100,000 MRC * .00000055 LTC/MRC = .055 LTC . Then sell the LTC back to BTC: .055 LTC*.032 BTC/LTC = .00176 BTC. That's 76% profit in one round trip, and that's why so many people leave a standing order for 1 satoshi.
The .15% fee essentially doesn't matter. The only limit is the small volume of people too impatient (or not knowing the trick) to convert it themselves.