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.