> What I am working on is an overall solution so that the need for CAPTCHAs at all is diminished.

I like that idea, but my worry is it will take years to reach that point, and in the meantime Tor/VPN users will just have to suffer. I'd rather see some short-term fixes now and long-term solutions on the horizon.

I admit: I have not read the entire Trac thread, so I'm not sure what your current roadmap is.