Decided to just come out and ask since the search results aren't giving me much.
What bothers me most is how hard it is to find real, unfiltered opinions. Forums like this are honestly more useful than any best-of list I've found through searching.
I've noticed a big difference between platforms that moderate actively and those that don't. The ones that don't tend to become unusable within a few months.
Feel free to share whatever has worked for you, even if it's not the obvious answer.