[aaabre2476]

Most of the time it's professors from universities that are financially well off already and who like teaching, often nearing retirement.

If you need another fancy job on your resume or a big paycheck then it isn't for you. It certainly does a good job filtering out instructors that only care about their own advancement and don't give a shit about teaching the courses, which is unfortunately a significant percentage of the people that teach university courses.

I'd go as far as to say academia in general isn't for you if you want to get paid the big bucks. If you aren't professor emeritus or department chair for a large CS department, then it is never going to be competitive with industry. That should be obvious, but I guess for some people it isn't.