What do you mean no active dev lol The dev has been active in here for a long time and has helped out many community members. Maybe he is taking a break for a little while and will be back soon. Remember devs have a life outside crypto so he might be spending some time with family and friends.

On another note I think that its also best not to get listed on Yobit, yes I thought it might be a good idea not long ago as I saw what Buzz was doing with the volume on Yobit but since then that coin has crashed hard, Yobit is a place where there are pumps and dumps regularly so I think that's what happened to Buzz and now the coin hasn't really recovered. I think 808coin is best where it is on the exchanges its currently on. But maybe Coinexchange might be a good exchange for 808coin in the near future.