What Chris is saying is that there are two different lenses. It's almost impossible to have a correlation between these two - your customers are looking for different things than your VC. I always split my product into 2 - the main one for customers and a second one for VCs (with a more vision, sometimes different business model). When I raised VC money I used a different product demo than the beta which was already in use by the customers.
I find the correlation between UI/UX and conversation rate very interesting. Based on my experience these blog posts are usually very popular. For example : where to locate call to action buttons, location of the title, number of screenshots, etc. I made several tests on my web site, changing the design and location of the social networks buttons. After all the changes I increased the click rate from 2% to 8%. I couldn't find any good posts or references about this topic.
I'm an introvert as well and I found out that it can be an advantage. Most startup employees (especially developers) are introverts as well and find it much easier to relate to someone like them. Most people are not looking for the typical 'manager' type.