On the tax, I'm not sure if it is possible to split the tax between curators and creators? Meaning it will become 47.5% -> 5% <- 47.5%.
If the above can be done, then I'm ok with leaving the tax on pob.io front-end content as it is. I think those posting from other front-ends could contribute more to pob development with a 15% tax.
It's a bit like how I have to pay 30% capital gains tax on US stocks because I'm not a citizen.