As a user I think I've put your website on my mental "avoid it" list for its design. I've opened a page now and I feel like I'm instantly in a tunnel vision mode. For UX: it's not a pleasure to scroll up & down; maybe there's also a psychological element about the main content area being so slim in width.

The other comment made me remember there was captcha too, right? I had been using my own rented server as a VPN for all my internet access. But I'd have never blocked it for a public list - I've read the 'about me' page.