What would be the benefit of "curation" of classifieds? I pretty much use Ebay with filter < 50 mi as a way of looking for locally sold goods now-a-days.

You will, most won't.

Indeed - for every random idea that flamed out in SV, there was at least one person that would pay for it.

Also, sell side users want to max the depth of market and liquidity, and gate-keeping is a problem for them.

I thought I was having some sort of MBA-jargon-flavored stroke when I read this, but thankfully everything seems to be OK.