I'm all for adding coins, but it comes down to more of a "how much time do you guys want me to spend on new features" vs "how much time do you want me to spend hitting 'trade' manually"?
It depends. MEOW was very profitable for a couple of weeks when it was just on the non-automated exchange. Trading it once per day would perhaps have added significantly to the overall profit of the pool.
Many other shitcoins are not that profitable and not worth the trouble.