Stack Overflow is 10
stackoverflow.blog
stackoverflow.blog
Is there today any equivalent to expertsexchange that could similarly be "disrupted"?
To your question, so much of the value of certain websites are in the community, such that a better UX/UI/Functionality doesn't solve any pain points. A lot of companies have tried disrupting Craigslist.org without too much success. Reddit.com is another website that is seemingly poorly designed, but extremely hard to disrupt.
I wonder why people here dislike them so much, is a mystery to me. I also try to answer old questions when the answer in stackoverflow was no good (this way I don't have to fear the mighty editors)
P.S. I also wish Stack Overflow spending more time designing the UI. The blog looks much prettier. I want the site to be prettier and clean too. I would nearly visit the site everyday.