DZ,

I can't speak for the other guy but just as an observer here, what he said was that his experience was a disappointment "for [him]."  That doesn't mean that nothing (or even most of what) you've done has been of great value to the members and the community at large.

My own experience has been somewhat mixed. I wouldn't necessarily say a disappointment but I can certainly understand how others with a slightly worse experience than mine would feel that way.