The question of whether to stay on Blogspot or move to a forum-based platform elsewhere is interesting and important enough to deserve its own post. I've read all the comments on the subject left on the 0.8.2 post, and it seems like there's a lot of support for the idea. It's an exciting possibility, and could provide much better community engagement, modding support, and feedback response than happens here. A forum could even support fun stuff like worldbuilding threads and writing.
On the downside, I'm extremely cautious about keeping my hobby authorship of FC and the rest of my life strictly segregated. (Longtime players have probably seen this tendency in action before.) As far as I can tell, securing a domain, getting web hosting, etc. are all possible anonymously, but it's a chore that I don't want.
A clever alternative suggested in several comments was to create a subforum elsewhere. This has its own issues. I'd want quite a lot of moderator authority, with the intention of handing it over towards community members willing to exercise it on my behalf, and not everyone seems willing to just hand that kind of thing over.
If anyone can see a good way past this, let me know. Alternatively, if you've got experience with these issues and are willing to help a novice, email me and we can hash it out.