The software development community is full of anecdotal evidence about these things. It's also full of people who've done something once, and then want to sell books, seminars, and lectures about it. That's not been working too well: it makes software development research be mostly about fads, and that's no way to build a strong foundation.

Yes, by far the most annoying thing about software development is encountering the "* school preachers".

Will actual data solve that? It doesn't seem to solve it outside of CS, but it does seem to help one separate what's real from what's poppycock.

So, anything to destroy the development school preachers and priests... I'm for!