We can also understand the temptation to just spray and pray out to thousands of companies, given the owerwhelming number of spurious autorejections, fake / expired / poorly crafted job ads, etc. Not to mention all the ghosting and other random / shitty communications these companies routinely deal out to people at various stages of the process.
If the tool is available, everyone has an incentive to use it, whether everyone else is using it or not, because the benefits of speed/volume accrue to the individual, while the drawbacks of a less-useful process and less-reliable signals are distributed among everyone.