Many of the SA community moved to iNat, I have also signed up there but it is quite different and I seldom use it. It just doesn't have the feel of iSpot (well, what was iSpot before all the hassle). Think people just got a bit annoyed with the time it took to get requests fulfilled. I am myself have diverged attention elsewhere, like twitter and facebook groups in the time that the site was down, and now I have put more on my plate than I can handle! At least the activity tracker is active now, but in true IT upgrade style everything now requires just that one extra click, extra effort etc, i.e. feeling over-complicated (at least for me). But the site does seem faster.