Well, most these numbers are just a gut value and is more of a relative ranking between the currencies than an absolute of a what a perfect community is. But basically I was going for ranking the total number and how active the members are. LTC is bigger than NXT and Bitshares but smaller than BTC. But as I said since this is based on only my own knowledge feel free to adjust the numbers and come to your own conclusion. The exercise was helpful for me I think to quantify my own rankings.
Yeah, it's an interesting way to compare coins and the factors that make them what they are. I don't read the NXT forum at all but from the little I've seen the community there is very much interesting in adding new features and progressing their technology to keep up with the times. Which is the opposite of what I'm finding from the LTC community unfortunately. Despite TheMage being the first person I've seen supporting LTC progression, no one else seems to care.