That post also suggests two things that Tor could do to improve the situation for their users:

* Support a stronger hashing algorithm to make it possible for CloudFlare to make .onion versions of all of their customers' sites. * Implement "client-side" CAPTCHAs.

I don't how feasible either of these are, but it seems strange (evasive?) that Tor Project's blog post does not discuss either.

I believe Tor is working on a new version of hidden services which would address the first concern.