[riskish]

I think this is a coincidence. It would be quite an unethical service to let users search for possible domains and then steal them before we have a chance to register them because they identified it as being valuable.

That's not to say they don't register and own their own, but using your entries as a gauge to see if they want to register something is pretty unethical for a registrar I'd think, even for godaddy :).