One of the great things about running a site such as this is that occasionally your posts reach people directly in charge of the subject you're speaking on. For example, I posted about Readernaut vs Goodreads and received insightful comments from a number of people - including a Shelfari employee and a GoodReads employee. What's most interesting is this quip he made:

As is evident by browsing our site, we don't employ a full time designer. I'm not sure how much longer we'll be able to manage, but that has definitly had a huge impact on our product.

If anyone has specific feedback on what we could do differently, we love making our site better, and would love to hear from you:

http://www.goodreads.com/about/contact_us
http://www.goodreads.com/group/show/1.Goodreads_Feedback

So there you have it - talk about the bad UI/UX of a site and you might actually get direct feedback from someone who can help correct the issue!