"19% sounds wrong" - thanks - this is roughly an average for unpopular altcoins - not for bitcoin.
If you can cite the article, that will clear things up.
You are saying "an algorithm not based on hashpower"; thats POG
I'm talking about mining where you do a split on the reward so it is true tithing (10%) as opposed to enrolling people into to giving. This way, you don't even need to own BBP to participate, nor set up a recurring giving scheme. Fewer steps to participate is better right? In the end, it is to benefit to charity, so perhaps the mechanics aren't as important.
Curious, is the orphan foundation keys now shared? multisig? or still just one owner?