RE: Thoughts on HF 20 "Velocity"- Yes to tokens, but no to mining.
I would be ok with mining, but not if scrypt is the PoW - it would have to be something with no ASICs. Cryptonight or something else where not even GPUs have a significant edge. Aloo (f it's even possible) pooling would have to be disallowed. And the tokens would have to be only good for creating am account and non-transferrable. Basically, CPU mineable without any way that it could benefit botnets. That being said, for acquisition of a stake in a DAC like this one, I don't think that $5 is a substantial minimum barrier, especially of there was a category/app/something that the accountless folk who can't afford $5 could use to petition for a sponsor. Given that we are faced with the delicate question of how to increase adoption by two orders of magnitide without a comlarable reduction in quality of content (like reddit suffered when Digg imploded) we must proceed with caution.
Please help me to understand your aversion to GPU mining. I don't know much about mining, but what difference does it make if it's CPUs or GPUs doing the work? Are you just short of GPUs and have a bunch of bad@$$ CPUs - so you don't want people with GPUs to be able to outperform you? :D
Honestly, I don't think I even know enough about it to even formulate an intelligent question here, but what can you explain?
If we're talking about a PoW as a mechanism for registration of new accounts, a GPU friendly PoW algo sets a high barrier to entry for being able to mine, which is not the goal here.