I used to think this has great potential but now not sure. Such a big drop in the past from mining issues and lack of developer support. Why have the devs abandoned this forum?

Fella, dev team is working and have no time being here how people is whining. If you want to get in touch with one one them visit DubaiCoin [DBIX] Community in face book, also get in touch with them via twitter, slack and at the beginning they used to answer questions on Skype.
They have not abandoned the boat. Be cautions when you talk about that. They are still in charge and I rather to have a dev team working hard than they gossiping in this thread.
Pease and invest in DBIX.