Time Travel Question: Downtimers on the Internet?

Out of curiosity, what would pre-21st Century policymakers think of the internet once they're introduced to it?

Surely, the concept of a globalized computer network where users access/contribute nearly whatever content 24/7 would prompt some rigorous thought and deliberation on their part. Even without having the sort of regulatory power that the real-life FCC has, one ought to wonder how downtimer authorities would approach such a transformative, unforeseen advancement upon finding out about it.

Wonder that as well, also i would think they would consider uptimers to be crazy when they hear about Bitcoins.

No one's replied to this thread in a while; I should start it back up. For starters, I wonder how we'd best go about explaining what the internet basically is to the downtimer masses who--as far as I'm aware--wouldn't have had a concept of search engines or social media, at least as we modern people understand them. As much as I'd like to pull up a video that might be fit for this purpose, they tend to require, well, uniquely 21st Century sensibilities to grasp even the gist of. This GCFGlobal page will probably have to do.

Moving up by a few tiers of expertise, I also wonder what the mid/late 20th Century STEM community would make of a global computer network on which billions of users access and contribute pretty much whatever content on a 24/7/365 basis. Certainly, it's presented decisive opportunities for data-gathering and performing as well as exchanging research between professionals, though a major downside is that much of the web contains false information and that its proprietors often employ...unethical means of making this all happen.

For those who are able to comprehend what the internet is and what it does, it might also be worth asking what they'd make of a for-now hypothetical decentralized web. That is, one that doesn't operate on centralized infrastructure, keeps personal data in the hands of owners, and is effectively uncontrollable--no matter what the tech giants, government, IP supporters, moral guardians or liberal watchdogs think.
Blockchain, cryptocurrency, "dApps" and the open-source movement would also go along with this to some extent. Though most of these are only being seriously discussed in certain, more techie circles at the moment, I think the prospect of something even less tameable than the WWW of 2019 would give pre-21st Century authorities a real headache.

I think you have posted some stuff that compared to what is out there on the internet will be horrifying to downtimers and who mostly cannot believe that such stuff is so easy to find.

No, but there would some stuff out there that even i would find horrifying.

Would the way many female stars dress in 2019 be considered little better than naked in some previous periods? Even today in many fundamentalist countries it can get a girl or woman killed (e.g. Pakistan or the ex-Soviet republics in Central Asia)