I'll simply +1 this!
While off-chain solutions (such as foundations) are also an important asset, we absolutely need on-chain worker proposals. Now, I'm not in favour of increasing the reward-pool, but rather redistributing some of the 75% for posting rewards to it (for example 75% to 65%).
And regarding the implementation, the price sounds reasonable. Would be 125k - 250k at the current 40c STEEM price.
I'd take from the curators if from anyone, the content producers long term are going to be what matters. We can see this issue already with Youtube, all the content producers are complaining about the company taking too large of a share and content producers not being profitable enough. Long term, I don't think the average user will value their curation reward all that much, because most content consumers will not have much SP anyway.
But 10% is way too high, the 1% makes more sense. 10% is huge and a danger to decentralization long term, while 1% is not something I would worry about.
I agree with you. I think taking from existing inflation is better than creating more inflation. I would push for a little higher than 10%. Maybe around 20%, pushing posting rewards to 55%. Witness and interest payments shouldn't be reduced.
Gauging from responses in this post. Using existing inflation appears to be the preferred option.
Donations would be great but they are less of a guarantee. Beneficiary rewards are another way of adding to the fund. An initiative similar to what @steem-plus are doing could help.