Tried a bunch of things on my own first but kept hitting dead ends.
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.
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.
If you've got experience with any platforms or approaches that work, drop them below.