When people started having both standards and options. I can choose between a college frathouse and a productive guild hall: why would I live in a frathouse?

Indeed. Choose away. Of course in the end you choose the one with functioning plumbing.

It was a disqualification once upon a time, or at least a severe black mark to atone for.

> Yes, but when did professionalism become a requirement for open source software?

About the point where a third developer joined a project.

One person can slag himself all day long and it's just crazy muttering.

Two people can slag each other all day long and it's he said/she said or some combination thereof.

Three people ... dammit, there's a witness.