Late but here... thanks again ransomnote for all the work to keep the thread alive!
I wonder if the bulk of the remaining 75% of reports not yet entered by the CDC actually do reflect a problem with blood clots etc.
I looked at the deaths per month, thinking as people draw back from being vaccinated, the CDC would intentionally 'fall further behind' in entering data into the database to tone down the evidence of negative reactions.
The chart below does show a steep drop in deaths for Pfizer and Moderna for April - on tract to be a small fraction of prior months. If the rate persists for April, then April will have about 20% of the deaths compared with the prior month for Pfizer and Moderna
I don't know if that's because vaccinations 'hit the wall' and people don't want them, and/or/also because the CDC is selectively halting the entry of data that could negatively impact vaccine demand.