Depends, many are fluctuating users, many are here since several years 
Also there is the chance that they ge the email notification so its possible the old users might respond even when not being active in jme anymore.
@erlend_sh said:
@shirkit and @madjack there's really nothing wrong with reviving old threads as long as it's not about, say, reigniting an old flamewar or asking jME3 questions in a jME2 thread. It's always a very good idea to @mention the previously engaged posters though in case they might be interested in what you've just added to the conversation.
I agree with you, but
@iamcreasy said:
What do you want to know? Have you worked out the basics yet?
@jockex1 downloading right now. Will report soon! :P
@alfinete said:
Hi Jockex,
Very cool little game. You obviously took a good idea to the next level to make it better. It worked fine on my PC. I don't have any criticisms -- it is all good. I liked the shadows on the floor of where the block will fall. You obviously thought things out fairly well and you've made yourself a nice game there. I think, for it's simplicity, it is probably a good jME3 showcase game.
Congrats.
Alf