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It's worth pointing out that this is the CFR for the virus, SARS-CoV-2 (i.e. including asymptomatic individuals). The CFR for the disease, COVID-19, is 3.3% (2.9-3.8%).

I'm not sure which it is more common to report, but the 2% estimate that was used earlier in the epidemic was for the disease rather than the virus, apparently.

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The CFR rate for the disease rather than infectius agent is not really useful for anything besides inciting panic. Consider the case where a virus only shows symptoms in 0.1% of case, but is 100% fatal when it does. You could report this as NEW EPIDEMIC 100% FATAL, WE ARE ALL GONNA DIE!!! but that hardly gives a realistic picture.

"We are all gonna die" is a statement about the mortality rate, not the case fatality rate. This paper does not deal with the mortality rate.

That CFR is not for the disease. It is for the disease that has progressed sufficiently to be recorded (noticed).

If I am reading it correctly, that is not what the paper says. It says that it takes into account the individuals who had the disease but were not reported/recorded.

Further to that, some individuals are asymptomatic which means that not only are they not reported, but they never are. They don't get the disease. It has nothing to do with how far the disease progressed in them, because they never have it.

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