http://www.reddit.com/r/haskell/comments/o5iov/modern_reallw...
@peaker I think each of your issues has prior art. The author of yesod has had his gotcha/critical-list, and a response from a Simon!
http://www.reddit.com/r/haskell/comments/k4lc4/yesod_the_lim...
and partial functions in prelude
http://www.reddit.com/r/haskell/comments/lf71l/deprecate_pre...
http://haskell.1045720.n5.nabble.com/Proposal-Move-the-insta...
re: redoing Num and numeric tower (prolly won't happen)
http://www.reddit.com/r/haskell/comments/nt0op/i_wrote_a_mod...
also: quality/popularity of packages, as more and more hit git/github, they could post #s of forks, pulls etc, as a crude proxy for ... something
http://haskell.1045720.n5.nabble.com/Proposal-Move-the-insta...
re: redoing Num and numeric tower (prolly won't happen)
http://www.reddit.com/r/haskell/comments/nt0op/i_wrote_a_mod...
also: quality/popularity of packages, as more and more hit git/github, they could post #s of forks, pulls etc, as a crude proxy for ... something