While I grant you that this can be used by fraudsters for social engineering purposes, it has many more legitimate uses. The most common one that I have had is to simplify automation of fetching web pages for batch jobs. You don't have to rewrite a script that used LWP::Simple or that passes stuff to lwp-request, you just add stuff to the URL.

While I can't say for sure what people around here have used it for, all of the comments that I have received suggest that they used it for exactly what I did.