CRUD is good, except for maybe U and D, which are the proverbial erasers in "Accountants don't use erasers or they end up in jail".

And people storing other people's personal data end up with fines if they don't remove the data on request. The whole situation got so bad, that timescale had several bugs which prevented U and D of single records, you could only delete a shard. At least C and R is fast.