Small nit, I worked on TypePad directly and it was very influenced by Moveable Type (and maybe some copied code) but it wasn't an instance of Moveable Type. E.g. there was never a time where you could patch TypePad with a MoveableType update. The architecture transition was primarily to stop rebuilding pages after every edit, but that also ended up being a good excuse to try to clean up a bunch of other things too.
100% correct, and there's no way I could possibly "well ackshyually" you on this, Garth.
I guess the way I look at it is TypePad began with MT's "publish-then-serve" design, but scaled way up. I agree it wasn't actually directly downstream of MT. Regardless, after Seismic and Phenotype/etc. it looked like a three-tier web app, if a bit idiosyncratic.
I do often wish we were living in 6a's (in retrospect) polly-anna view of a future where everyone self-published and built community, instead of whatever... this world is.
