I have a pile of domain names with them. And I routinely get hit up to buy lists from brokers. I've never seen one from NameSilo, which would seem to go against their own business plan.
Just curious, have you bothered to
contacted them about this to confirm it was not just a mistake? Or was it just more convenient, a la the "GFY Mentality", to come here first and make another thread before confirming anything?