No, I have no experimental protocol ready yet, but have the impudence to insist that we as a community should create one or shut up.

I certainly agree with the 'create one' part of what you're saying. Not so much the 'shut up'. Talking about the topic (and in so doing dragging all sorts of relevant knowledge from the community) and also self experimenting has its use. Particularly in as much as it can tell us whether something is worth testing.

I do note that there are an awful lot of posts here (and on Overcoming Bias) which do not actually have controlled studies backing them. Is there a reason why Kaj's post requires a different standard to be acceptable? (And I ask that non-rhetorically, I can see reasons why you may reasonably do just that.)