used from nginx when Rails fails.

from accounts/tags because it's a terribly inefficient way to paginate
large sets of data

by updating it at least every 24h if the user visits the site

before loading new one, cache notifications API, fix missing follow button
on public profiles

production as it's very verbose and not very useful

in the pool, adding a throttle of 60rpm per IP, adding mini profiler, adding
admin status to users