Short answer: Yes, I think it's fair. Otherwise I would have switched to another pool.
Long answer:
Despite what someone thinks, Terk does a great job with this pool. It is not Terks fault that
altcoins (usually) aren't that profitable as they were a month ago.
Over the last 14 days, we have 12 days > 100% LTC. And the two days under, is by just a few percent.
Of the 2% pool fee, there is fees to exchange altcoin to BTC, fees for paying each user, and
costs of having the pool servers running - it's not exactly an old computer under his desk.
In addition to the actual expenses to be covered, Terk have done - and still does a lot of work for us.
Firstly he has created the pool - this consists of quite a lot of code - handling mining, multi-location servers,
calculation of profiteable coins, auto-exchanging into BTC, paying each user, the very nice pool web page, and so on.
Even some of the coins we have mined (at least in the past) isn't on an exchange that has an API. Then Terk has manually to trade the coins.
And he is also constantly monitoring the market for new (good) coins and other ways to improve profit.
Terk also takes the time to read the forum, answer questions and help people.
He is doing all this while he still is working on improving the pool software, fighting DDoS and other attacks, keeping the servers running
etc, etc.
So yes, I definately think it's fair that Terk still is "taking a profit" when we're at 94% or 98% LTC in a day.
(I guess I would end up with something like 90-95% myself if I were to mine LTC directly or via a LTC pool)