Oh there's various things, but the main issue is people just plain don't already know stuff (like Popper's philosophy) and learning a lot of material is a big challenge most people won't approach. Not knowing stuff leads to many disagreements with all the ideas they don't.
Have you considered writing posts about it? So far most of your posts have been about why Popper's philosophy is great, not about exactly what it is. A good introduction to Popperian philosophy would be less controversial and more useful.
I am afraid it wouldn't work, at least for me. First because I am probably already biased against curi and perhaps even against Popper due to the style of the recent debates, and second because I don't believe that curi represents Popper's philosophy accurately. Still, I would like to read a post written by someone who understands Popper explaining what his Critical Rationalism is in detail. If curi wants to write it, he'd better wait some time until emotions evaporate and create a new account for that opportunity and completely change his attitude to disc...
http://vimeo.com/22099396
What do people think of this, from a Bayesian perspective?
It is a talk given to the Oxford Transhumanists. Their previous speaker was Eliezer Yudkowsky. Audio version and past talks here: http://groupspaces.com/oxfordtranshumanists/pages/past-talks