Re Question 2: Why is this worse than lobbyists who actually screw us over and make our lives miserable?
Lets say a wealthy person wants free speech but has no real free time in the day to engage in a long online conversation. They hire one person to be that online persona putting in say five hours a day.
What if the message is always been drowned out by facts and reality? Hire 10 people to each be 10 or 100 accounts each with their own story and time zone, ip?
In the end you just go big and go with what a gov enjoys:
"Revealed: US spy operation that manipulates social media " (18 March 2011)
British army creates team of Facebook warriors (31 January 2015)
Re 'Really. I honestly want to know."
The "tell" is usually one person with a lot of accounts cleaning up after bad news about a nation, their faith or their side of politics, gov, mil or agency, having a few hours to get their spin over, before going full AC again.
Posting initial news reports or early opinion hoping to sway readers, hoping nobody will actually read the links and follow up with real news.
Virtue signalling is the big slip up most of the accounts just cannot avoid. Eg. a party political personality trait, pushing a "security clearances" past to add validity, patriotism, nationalism, jingoism, the same sob story again and again usually gets past the smart hearts and minds effort. i.e. the person befuddles their role due to their own gov work or some mil experience.
The better way is to set up a left or right think tank and have them hire based on life experience. The jargon, slang, life stories are then indistinguishable from actual account users, the spin can be perfected over years of account use. No needing tens of fake accounts, fake ip's, no fear of linguistic analysis, just perfected astroturfing for hire. The staff are happy and on message and if suited can be rolled out on book tours, public speaking, for comedy.
The better lobbyists are using well funded authors, comedians, public speakers rather than vast amounts of easily detectable online accounts.