This is still going on. The numbers below are from comparing the first set of files I downloaded, updated May 16, and the most recent ones, updated June 13.

Vaers id is the first record in the csv files. Both of those files start with the same record id,

The May file starts with 0916600 and ends with 1316369, a difference of 399769. But there are only 217716 lines in the file, which means 182053 records are missing there.

The June file starts with 0916600 and ends with 1392132, a difference of 475532. But there are only 346967 lines in that file, so 128565 records are missing.

Number of missing records dropped by 53488 from middle of May to middle of June.

And records are still being removed. I compared the lists of id numbers ( with comm ) and got 189 that are in the May file, but not in the June one.

https://files.catbox.moe/jf7mau.txt -- just the missing id numbers

https://files.catbox.moe/px9jho.txt -- the whole record for each number

If there's a Y directly after the symptom text, that marks a death, didn't notice any of those but I didn't read through all of them.