why new thread,where old account?
The developer decided to move to their own forum, the link is in the ANN. I believe he has some kind of contracts with video creators and they will use NNC for payments. Maybe they'll use that forum for discussions on that matter but I'm not sure.
Why dev closed old thread?
^He wanted to move to their website's forum.
Money Supply : 44m ?
Yup, 44 mil.
any bounty? 
We might create some bounties crowdfunded by the community, the premine is also 0% so I guess the dev hasn't reserved anything for that either.