Nevertheless, it's a brilliant extension, which should be built into the core.
You are right concerning the improvements on the documentation and making it easier to upgrade. We should be able to start working on that shortly, with results visible in the first quarter of 2013.
A forum is a bit more difficult to organize, though. There are few people actually asking questions through the existing contact facilities anyway. It is definitely not a flood. A rather empty forum may not be that useful either ...
We may run into the same problem for doing a FAQ. There seem to be relatively few questions, and definitely no "frequently" asked ones.
In order to move to an entirely site-advertisement -or free-of-charge download and not descend into abandonware hell, we would need at least a thousand times more users ...
Improvements would be more options in the module once it has been loaded: change variables mainly... and a way of copying the formulae rather than having to key them manually in each time.
But aside from that, this is an excellent alternative to the norm (as long as the generator page doesn't disappear!)