Heh. Exact opposite here - I'm religious and just posted here about how bad I find it at filtering people by religion (or politics, for that matter) for me. Its ability to match for me based on personality seems rather higher.
I'd suspected for a while TBH that there were odd effects from the balance of what questions were answered; some topics have more data coverage than others in the question pool and that (for me) seems to put a noticeable damper on its precision in other areas.
I've noticed that too. There seem to be a lot of repetitious questions all aiming at or around faith vs atheism. "Do you believe in fate", "Do you believe in miracles", etc are talking about the same kind of thing.
I'd suspected for a while TBH that there were odd effects from the balance of what questions were answered; some topics have more data coverage than others in the question pool and that (for me) seems to put a noticeable damper on its precision in other areas.