It's a fine line between good moderating and bad. Free speech should not be confused with the right to run a coordinated disinformation campaign. What is mostly needed is to filter out the trolls, obvious or not, while letting people say (mostly) what they want. It's more difficult than it sounds but some forums are really bad at it.
This investor's forum does a better job of that than many of the other forums on this site (which still have decent moderating). For a look at truly disastrous effects of failing to weed out what should have been obvious trolls, while heavily moderating reasonable discussion (micro-managing every little thing), go take a look at the Model 3 Owner's Club forum. It was a booming place with unlimited potential and the owner turned it into a veritable ghost town by letting sneaky trolls run rampant while simultaneously censoring reasonable discussion simply because it didn't sound happy and polite. The trolls quickly learned they would be allowed to rule the place and, as long as they remained civil and polite, they would be allowed to spread their misinformation freely. Simultaneously, reasonable discussion, if it even hinted towards anything less than ultimate politeness, was heavily frowned upon. What could have been a very valuable site is now a sad shell of its former potential. The lesson here is it's not wise to try to force ultimate civility at the expense of truth and honesty. You cannot force people to be 100% polite and gentle at all times and vigorous debate should not be viewed as "confrontational" or as an "argument".
What does this have to do with investing in Tesla? A lot! Because there are a whole bunch of early Model 3 owners who would be millionaire investors by now had they not been led astray by the army of trolls that freely roamed the forums there, masquerading as legitimate Tesla fans while making up and amplifying anything and everything negative while simultaneously running off people with more logical analyses. This created the wrong impression of TSLA's performance as a company and the likely coming appreciation of their shares. It decreased the pool of potential investors (making them poorer for it) and depressed the share prices slightly lower than they would otherwise have been at any given point in time. Forum members who saw through the BS went looking for greener pastures leaving the dregs behind. Forum management actually thought they were providing balance by letting these people spread their endless negativity and preventing the place from turning into an echo chamber. I want to emphasize that I'm not talking about people who simply had a different perspective, I'm talking about forum members who had the obvious and sinister goal of dissuading people from buying the cars and the stock and yet were allowed to roam freely as long as they remained polite and civil.
People here should realize how good you have it. Nothing is ever perfect, but it's a whole lot better than it could easily be as evidenced by so many other Internet forums where management and moderators don't have a clue what they are doing.