What can be done to make answers on Quora more accessible for questions having 100 and more answers?

There are two solutions:

1. Create an answer wiki, and have some poor schlubs index every incoming answer against some categories in the wiki, and ask that new answerers update it. That’s what the community has been doing.
2. Launch a hostile takeover of Quora Inc, hire new UX management, ban the ever-flowing page model as so, so 2010, and reintroduce paging. That scenario is currently restricted to my dreams. 🙂