I don't think you can rec too much, personally. As a reader, I really rely on the recs of others - especially those whose taste I trust - to bring stuff I might otherwise overlook to my attention. As a writer, any rec of something I've written is like the best comment, since it takes word of my story that much further out there. These are great, too; I keep wanting to get to Schemingreader's story, but it hits a bit too close to home and I haven't worked up to it yet.