Thanks for your question. I am very active on GR as a reader, as you noticed. I am one of those poor, unfortunate souls suffering from a GR addiction. I thought about forming a support group, but I'm too busy on GR to do it.
To your question, yes, interacting with other readers does inform my writing in many ways. Mainly, I would say that GR has helped me learn what other readers enjoy and what drives them crazy when reading a book. I've tried my best to incorporate that knowledge into new work.
Another more fun way in which interacting with other readers has influenced my writing is through the great friends I have made on GR. As you know, GR has a delightful mix of personalities. I have not been able to stop myself from incorporating a few of those personalities into my books.