Earlier quoted context omitted.
Google has largely solved the spam problem for end users. What I can't figure out is why platforms like Facebook and Twitter couldn't mark these sort of posts as, essentially, spam, by the same sort of rules and heuristics as email spam. Why can't they look at the metadata of verified troll-farm-generated clickbait/junk/spam/fake news, and make their own filters, and demote that content? Simple. Because they're makin…
If you manually type up an email with false political claims and send it to a gmail/yahoo mail account, it'll likely go through. The spam blocking they do is designed to eliminate unwanted bulk mailings from automated systems, not some one off bit of content from an individual.
If it is reported by a recipient using the report button most email providers have then your email host gets a black mark in various databases. With repeat reports over time, more and more of thier legitimate customers stuff gets filtered.
That means your email host is incentivised to find and shut down spam accounts, ideally before they start sending mail. Register a bunch of accounts from one computer or from a proxy? Closed.
You could get around this with your own smtp server buuut... If you send a lot of reported emails your home isp will chuck you. They don't want thier ip block blacklisted. Your cloud smtp spam server will be pulled by amazon and they won't let someone who seems to be you create a new account.
So yes, you can send a few manually written emails and send them to a couple people at a time, but anything with wider reach will be shut down rapidly at various levels.
Meanwhile, you can script create thousands of twitter bot accounts with obvious bot names and... If they are looking for them, they aren't looking harder than they are being made to.
I guess this is a strong argument for federated Internet infrastructure. Everyone is incentivised to play nice because thier partners can cut them off.