You make some points. Perhaps, Parler was too large to have moderators instead of an algorithm? It's all above my head so I'm open to a better understanding.
But, the Russian gov't (which surely has its hands in all legitimate "business") is trustworthy with a space already given to propaganda? I'm incredulous.
It's not a complicated game the Russians are playing. They find the individuals who fit the profile, bum rush them with false information, the imbeciles believe it, and try to take over the democratic process. Sooner or later....all you need is their Parler profile.
One would have to consider the massive influx of new users the "alternative platforms" got in a relatively short amount of time.
For an established platform (that grew at a normal rate), they had time to build up funds/advertisers/etc... to scale their moderation systems. (I touched on it in another thread, but language understanding tools like AWS Lex and Azure LUIS are quite expensive).
Obviously it takes time to acquire new advertisers and funds...
Parler went from from 1 million users in June (many of which were "inactive" users), to 2.5 million by the end of July, and then a huge influx of users in a matter of days following Trump's twitter ban. (they moved to the number 1 spot in terms of app store downloads in the day following the twitter ban)
They're simply not going to be able to ramp up their moderation that quickly.
It be like if ChristianForums doubled it's membership in one month, and then a few months later, re-doubled that number in a matter of two days. They'd have a hard time with the moderation aspect.
With regards to why they'd opt to Russian webhosting?...who knows. As someone who's an IT professional who deals with a fair amount of cloud infrastructure, I wouldn't want any webservers in China, Russia, Venezuela, or Brazil. But then again, I'm not running an open social media platform, I'm dealing in things with credit card processing and confidential customer data, so it's a little different.
I mentioned in a previous thread that there's a downside to ostracizing those with radical beliefs. Sort of like with a cult. The best way to get people out of a cult is to confront them and challenge what they're being told as you're likely going to be able to "de-convert" a lot of them given the time, and not to take the approach of "well, they're weird, so let's just move them over to this walled off area and never interact with them".
They would've been better off leaving the far-right extremists on twitter/FB where they could be confronted for their beliefs...when you send them off into the realm of a dozen different echo chambers, good luck ever getting them back to reality.
My fear is that it's going to be used as an excuse to "squash" any opinions that are right of center on anything.