Having your access restricted based on readily-remedied conditions, based on consideration for the common weal, or to one of numerous potential suppliers or vendors, is different from access restrictions based on flat-out retaliation, intimidation, coercion, historic social discriminatory bases, and/or to the sole, overwhelming majority, or most attractive (low cost, convenience, features, compatibility/interactivity) provider.

The "private business right of refusal" argument has some merits, but also substantial equity and justice problems.

Running through some stale tabs, gumby makes pretty much the same point a few days ago regards a flatfile addressbook:

https://news.ycombinator.com/item?id=27442335

I guess I'm thinking more about a "decentralized Google" where it's impossible to remove things like revenge porn. Is there anything we can/should do about that potential?

You mean, anyone's web index that they created outside of Google?

Indexing the web is an old tradition.

Not quite, the analogy breaks down here… discoverability vs. accessibility is different. Both contribute to the distribution of content. Google solves one part of that equation, but I’m referring to total decentralized distribution.