This comment puts it well: https://news.ycombinator.com/item?id=17789161.

sanderjd · on Aug 18, 2018

You have the same incentive to prioritize ads over recommendations. If I trust you to keep ads clearly separated, I also trust you to keep recommendations undiluted.

gits1225 · on Aug 19, 2018

> You have the same incentive to prioritize ads over recommendations.

No.

> If I trust you to keep ads clearly separated, I also trust you to keep recommendations undiluted.

True. I am the one curator at the moment. I'll open this so that others can curate / recommend. I require that dilution of intention doesn't happen then. DNA is important.