[effie]

So, your takedown is "it does things you can do with badblocks"? Not everybody wants to use command line application that can't interpret large integers properly, some people prefer nice user interface and active developer that can work with larger hard drives.

> he's even claiming that Spinrite can improve SSD performance by repeatedly reading/writing data, which is absurd.

Is it really so absurd if it works? Did you do some careful tests of Spinrite on SSDs and did you find it never improved their performance? You seem to be describing 1) your mental model of the SSD drive, and 2) your belief that this model prevents Spinrite from working as advertised. How it prevents that? If SSD firmware does relocate data to other cells when read problems are detected, or refresh the cell charge where the data is, why performance can't improve?