My buddy is 40 years old, not very technical, but he's one hell of a mechanic. He's been making his living off buying and selling cars off of CL since the recession started. Just an anecdote. I'm not sure an "improved UI" would help him. So many entrepreneurs are mad at CL for whatever reason, but the main one seems to be jealousy. They would rather ruin it than allow it to continue.
I found that nearly every used car I looked at on CL was either being resold by small-time "car dealers" or bought up by these same people. It was nearly impossible to find a good used car so I finally leased a new one instead.
i don't think it's just envy that makes entrepreneurs mad. CL is also quite litigious (but in a hypocritical capricious way), which is generally out of step with the rest of data-is-free, api-driven world.
