As noted a few days ago, I recently had an article published on the Guardian site entitled Hiding your research behind a paywall is immoral. The reaction to that article was fascinating, exhilarating and distressing in fairly equal parts. Fascinating because it generated a fertile stream of 156 comments, most of them substantial. Exhilarating because of some very positive responses. And distressing because some people who I like and respect absolutely hated it.