You don't actually need real looking accounts. Almost all of this stuff is done with the most superficial and obvious accounts.

You don't need any reputation at all because the sites do very little actual work to block literal nation state level information warfare campaigns (because that would cost money and reduce their metrics)

You also don't need any reputation because the real humans who will be boosting your false narrative or "information" are the type that take someone else telling them "No, that's fake because <reason>" to be high quality evidence that it is "The real truth THEY don't want you to know"

Like, these accounts will quite literally only be active from 9-5 Moscow time despite being "In the US", and yet that is apparently not a strong enough signal for companies to target them for review or bans?