I have compiled a
40k tactica activity graph for the major factions, counting posts in their tactica threads.
Each faction typically spikes with a relevant release or
FAQ.
Orks look absolutely crazy (and of course they are), but they're still in prolonged inphancy with their index tactics thread whereas most other factions have swapped thread (and reset the counter) with the release of a codex.
Necrons spiked heavily with activity with their release and almost catch up on AMs half year advantage. Agreeably solving Necron's problem takes some discussion.
Chaos discussion have several tactics threads to drop into, one could perhaps combine some, bit for now I have kept them together.
(Also not sure which forum to post this in, but starting out here)
Edit: Added misggin factions;
DA and
SW