OP offers a first-rate review (strategy + tactics!) for the inspection approach.
But, the unspoken alternative is to rethink the on-ramp to content-creation privileges, so that only people with net-positive value to the community get in. That surely means a more detailed registration and vetting process. Plus perhaps some way of insisting on real names and validating them.
I can see why MVPs skip this step. And why venture firms still embrace some version of "move fast and break things," even if we keep learning the consequences after the IPO.
But sites (mostly government or non-profit) that want to serve a single community quite vigilantly, without maximizing for early growth, do offer another path.