I now agree on the font size issue. I just wanted to pick up on one other thing:
Nodes are sometimes downvoted ... for bad cause
IMO the issue of why nodes get downvoted would be best for another discussion in another thread. In my view the central issue at hand is that we've got nodes with a significant negative reputation, i.e. the community has already spoken, but we don't have a way to inform newcomers and casual visitors of that fact. (And of course adding a CSS class for such nodes would also allow registered users to hide or format such nodes to their liking.)
Update: Fixed typo.