This forum was an excellent source of information when first I built my Hadron for which I am very grateful.
I check on here every couple of weeks but I agree there is not a lot of activity which makes me think there are not many new OrdBot builds. I personally go on the RepRap forum now
http://forums.reprap.org/index.php however there are not many posts specifically about OrdBots. I had some comments about the availability of Makerslide being the reason why it is not more widely used.
Any other forum recommendations would be welcome. I have done quite a few mods since building my OrdBot. It would be useful to make comparisons with what other people have done and compare notes.