The miner is now so stable and solid, I doubt there is much more that can be done to improve it. That being the case, he should probably increase the fee to say 2.5% as the software is well and truly out of beta. I get hashrates at least 4% better than the nearest competitor so I would accept a higher fee. Can't say I would like it but I wouldn't complain about it as I am a firm supporter of capitalism and fees should be set as high as the market will bear. Can't see any reason why he should lower the fee! Doesn't make any sense at all to do so.
quite the opposite. the intent of a dev(eloper) fee is to develop and improve. if there is no more substantial improvements, then the fee should go down not up. we've been told dstm zm 6.0 would be out for a month now. its not here, why would the dev fee go up?
i'm all for projects removing dev fees from miners at this point. you are a moron if you think that a program author has rights to 2% (or more) of your hardware output without any regular updates/performance increases.