tl;dr The title explains it, two differing schools of thought

Ok, so Blackdragon says DO NOT to go for the kclose on the first date/meet unless sex is obviously being offered, and Corey Wayne says DO go for it to gauge interest level.

I've always used the kclose for almost 30 years with good success, but I'm intrigued by blackdragon's approach. Judges, what are your thoughts?