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Well if the community don't tackle them who will? I assume 1 - 3 are controlled by @ned and co. as they relate to the steemit UI but arn't changes to the block chain itself decided by the witnesses?

Witnesses vote on whether to accept a hardfork.

The ideas you suggested aren’t bad, but the real intention of the post was to gather ideas on what we as the community can do to make the platform better.