Feedback is our payment and I salute those who take the time to contact authors. Most readers, however, maintain a low profile. I roughly calculate that two or three send me a note per 100 readers, per chapter. Many lurkers don't want to get involved in the process. Others are closeted for a myriad of reasons. Some print chapters for later reading away from a computer.
Graeme mentioned Drake Hunter. Another author I admired who disappeared is Savoir-Faire. Here's a short story he wrote almost ten years ago: http://www.nifty.org/nifty/gay/highschool/brown-eyed-boy. Another terrific story is Dark Angel. For whatever reason, S-F dropped out. BTW, does everyone know about The Best of Nifty site that Awesome Dude maintains? It's a marvelous depository of classics. http://www.best-of-nifty.org/#niftylinks.
Personal problems, career/school pressures, time restraints, life priorities, discouragement, creative drought: each of these reasons can seriously challenge a writer's productivity. Throw in a few of these together and the result can be quite disruptive. A couple of my favorite GA authors - Topher and Dom - are maintaining very low profiles right now.
Don't get down, BeaSTKid, about the lack of response. I hope you feel that each chapter makes you a better writer. Several stories and updates are posted daily on GA. Add to the mix the flourishing forums with which the members are continually involved and the other excellent story sites that are frequented. We - the authors - daily face volumes of worthy competition for the reader's valuable time.
Jack