they havent voted on here probably for the same reason why you havent jointed Slack. They see no need to be on here as they get all there Bay info from the new forum and slack.
Thats a big error on their part then because this forum creates free and targeted advertising for bitbay. Slack is for those already aware of bitbay.
Never underestimate the power of the main board here. This is crypto central and the place most noobs arrive to consult for investment advice and ideas.
I agree that Bitcointalk is important. For a long time I've had on the bounty list to have community managers and threads for multiple languages. I think the thing is all of our core team is worked to the maximum. I'm optimistic that this will change soon.