This is my first contribution to your forum. I only have a single story on the net. It's called Perry and Jesse and is posted at Nifty in the high school section. I have been posting for about a year now. I don't know about other authors, but I write my story completely in secret from anyone in my 'real' life. The feedback I get through emails and my livejournal forum have not only been a great source of encouragement in the continuing of the story, but have also opened a whole world to me I never knew existed. I have heard from readers from ages thirteen to seventy six--yes, one guy has been sharing with me his youthful sexual experiences from WWII! Most are gay, some bi-, some are like myself: bi-curious. it seems that I have heard from every corner of the globe from Canada to Australia, to India, South Korea, Portugal, Iceland, Denmark and even Singapore.
I very much enjoy getting into long continuing correspondences, and learning about peoples' lives in these different parts of the world, especially in regards to how homosexuality is perceived and tolerated (or not tolerated). Being a Christian myself, it has been especially disappointing to come to the realization that religion is one of the chief culprits in keeping gays from being able to walk freely and proudly in society.
I have heard from many Nifty writers who are fans of my story, and feel bad that I rarely have time to reciprocate. Whatever time I have available for this secret part of my life, is mostly taken up in working on my story and corresponding with its readers. I have also received many pieces of writing from individuals through email. I have even managed to encourage a few guys to post their own stories at Nifty or elsewhere, in turn opening whole new worlds up to them.
As far as how feedback affects my actual writing, it has very little influence on the plot. I write well in advance of what I post, so anything that the readers see has been in at least rough draft form for anywhere from three to four months. On the other hand, it is great fun to read all the various specualtions about what's going to happen next--even if they're almost always wrong!
To sum up, the feedback I have received from posting my story on the internet has enriched my life in ways I never would have imagined. I have never received a flame, but do occasionally get criticised for various plot twists or character motivations. I don't mind it as long as the criticism is constructive.
I want to add that the reason I even began writing Perry and Jesse, and finally got the nerve to post it was because I was so taken with the stories of Comicality. I had never read stories like his before, with so much romance and passion (and sex!), and if he reads this post, I want him to know that he inspired me to take a huge chance by posting a homoerotic story on the internet. It has turned out to be one of the most gratifying experiences of my entire life.