I'd disagree.
Multiple examples of fraudulent coercion in elections, multiple examples of American plutocrats attempting to trigger armed insurrections in European nations, multiple "free speech" spaces that are "free speech" only if you're on the side that they support, and multiple suicides from cyberharassment, doxing, and swatting, along with a few murder-by-swatting events.
But very very very little evidence of any actual benefits. With a SNR that would look great on a punk album but is terrible for actually trying to get anything done, there is absolutely no meaningful evidence anyone has actually benefitted. Hell, take Slashdot. Has SNR gone up or down since this law? Slashdot is a lot older than 230 and I can tell you for a fact that SNR has dropped. That is NOT a benefit.