I agree with a lot of things in there, but not everything.

1/ 6% is brutal and will trigger massive conversions. 15% is pretty high so there's so margin to get it down, but it should be done slowly and carefully.
2/ 3-month proposals are unsustainable unless you have the support of the biggest whales. It takes us over a month to gather enough support. What you're proposing will actually penalize community-supported proposals rather than those supported by the select few.
3/ Some projects (of course, I am biased, but not only talking about Keychain) have the potential to help Hive bridge with the rest of the ecosystem and help us develop further. Killing all development is basically giving up.

Other than that, I mostly agree about better selecting what deserves funding, holding projects accountable, and changing the way VP works.