Elmcat did a thing - Mapping the Blogosphere - pulled in a lot of blog feeds, looked at who linked to who, over a good long block of time. Threw them into some network-detecting software and out pops a neat hex of communities.
Noting the caveats of link-rot, blog-deletion, loss of G+, etc. that mean this is not the complete picture of all online effort around the thing known as the OSR, we can still discern a couple of true-enough to be useful facts.
First, this lets us put some kind of shape to the unsurprising intuition that there are a number of separate communities that travel under the banner of the OSR - some overlap more or less with others.
Second, there have been pulses of activity, some of these groups within the wider blogosphere are differentiated in time more than any approach to gaming.
Adapted from original logo by Matt Jackson
I hacked together the mashup above to reflect the truth, that whatever other facts there are, there are at least six meanings someone could have when they say OSR, one for each of those communities. From that persons point of view they are correct, that was a reflection of their experience of the OSR, thought it might have been a time and a community that is no longer extant. Another person going looking for just that OSR will not find it today, only its shadow, but that does not make the first person wrong.We have a multitude beneath the OSR umbrella - and Elmcat's work gives us a sense of which bits were/are at the foreground and when.
We can assume that brickbats will continue to be thrown at the OSR based on the behaviours of the meanest, most unwelcoming fraction of assholes and while it is true that those folk are in there, they are not a majority and to abandon the OSR to them is to hand a great victory to a puny force. Similarly, those claims made by outsiders can now be countered with something more than vibes - they are demonstrably a small bunch of bad actors, just ignore them and soak up the rest of the good stuff in here.

