Your comment seems disingenuous, because the predominant user interface paradigm in all sorts of programs (file managers, vector editors, text editors, ...) on all sorts of platforms is that when you select something, you can click and drag that selected thing.
This is a thing that is different in GIMP: that the selection specifies an area of the image which is affected by operations, rather than an object to manipulate.
"I did not know another way existed" seems outlandish. I mean, launch any paint program developed for any platform in the last 40 years; chances are you can select a rectangle and just drag it.
There is a rhyme and reason to the way GIMP does it, and you can learn it quickly, but it's going to cause complaints.
It could be that 99% of the anti-GIMP ranting is caused by this one issue.