Sure, can be done. Seems like a cool and not overly difficult challenge... So, to be clear we are talking encrypting the emails that members get when someone replies to their threads on this forums, etc, right? Would be no problem for me to do in PHP, but I (almost) never touched Ruby... worth a try though, just one more language. What is the backend of this forum?
Ah, I use GMail for now, at least as long as I don't have the @feralculture.com address, so I wonder how users would conveniently decrypt the emails... I mean, you'd have to select the text and use a browser plugin or something. Idk if PGP decryption is built into Gmail and there are other hosts as well...
It is a question of if safety is worth the additional effort of decrypting the messages. We would only probably encrypt our internal posts, right? Or maybe create a special category like "Top Secret" and these would get encrypted?
Or we could write our own epic Feralculture Undercover system from scratch. And this is not a joke, I've been doing similar things for organizations for sponsor evidence and gathering.. tasks, members, money, etc. We could have communications, custom tools, possibly land and services sharing around the world among FC members.... My imagination is running wild, lol Why not?
P.S.: One last thing: I have a 120GB HDD Linux machine with external IP sitting in NY that I pay for. It is (was) used as a repository for our gamedev projects, but after school pretty much destroyed my studio... well. It's doing nothing and using my money. Maybe it would be useful here?