There were a lot of questions, nice of you to ask. But it doesn't seem like you've read this post https://steemit.com/proposal/@dao.reserve/proposal-for-steem-dao-reserve-fund

When I talk about community, it's the entire steemit community, not the local community, but all steemians.

STEEM DAO is for developers who can apply for funds for the development of the steem blockchain.

Proposal for STEEM DAO Reserve Fund has been created because it is almost impossible to get applications for developers approved.
The reason is the Return Proposal created by @gtg many years ago which is at 45.298 M. and it has support among others from a large proxy account @dev365 which steemit.inc. is the owner of.
Why steemit.inc does not delete its support for the Return Proposal you have to ask them.

Without large investors of steem it would not have been possible to vote for someone who applies for help to develop the steem blockchain.
For voting the amount of 45.298 M must be exceeded.