[PragmaticPulp]

Non-technical cofounders looking to take advantage of others are over-represented in this pool because they never get selected.

They continue going on meeting after meeting, looking for a mark. Meanwhile, the genuinely good non-technical (or technical, for that matter) co-founders are quickly selected out of the pool.

It's the same reason that you're far more likely to encounter someone who can't FizzBuzz during interviews than you are as a coworker: The developers who can't do the job are doing 10-50X more interviews than the developers who are good at their job, so you're going to see far more unemployable devs than employable devs with a random sampling of interviews even though most devs are employable.

[DoreenMichele]

Sounds like a job version of "All the good ones are married." In this case, "All the good ones already have a job."