I interviewed with a firm that said the initially advertised salary was too high for my offer because I refused to describe myself as an expert in silverlight and opengl. If they find an expert in opengl, silverlight, c#, sql server, web services, c, and desktop applications, I wonder what they think that would be worth.

So yes, I do think it's a negotiating strategy. I hope nobody good will fall for it, I'd like to see this behavior punished by only being able to hire bad developers.