This market, and metaculus in general, doesn’t have anywhere near the same frequency of market quality problems as Manifold. For readers, I’d advise against dismissing the OP’s headline concerns as some manifold measurement error (though those are also real enough and I agree with the specific claims made by Marcus).
The V-dem Metaculus market shows a clean time-series bump following recent Trump events https://www.metaculus.com/questions/14141/us-continuously-a-liberal-democracy/
This market, and metaculus in general, doesn’t have anywhere near the same frequency of market quality problems as Manifold. For readers, I’d advise against dismissing the OP’s headline concerns as some manifold measurement error (though those are also real enough and I agree with the specific claims made by Marcus).