Dang, I didn't mean to do this. Without mechanics all this is moot. Arguable, but nonetheless moot. I know somewhere on this site, that it's called guitar tricks. The idea of the site seems to me is to be taking some of the complication out of theory, excercises, licks, music, etc.
Philosophy don't make a hill of beans if you have no hands or a brain.

I believe there are 8 ways to resolve a dominant chord. And 16 ways to resolve a diminished chord. This can be a very tedious study. It requires major standard notation reading and reasonably advanced theory background. I would venture to guess, most that come to this site lack this ability.
Advance jazz or players understand the difference between the two chords implicitly. We understand the resolution of the tritone in both chords. The tedium is explaining German, French, and Italian Augmented 6 chords. PRAGMATICALLY, most of my ilk call them dominant or V7 chords. It's just easier.
Most of us just want to be helpful. I'm certainly not rich,
but can play when I feel like it. The biggest problem is keeping the goverment from stealing MY money. Let's be helpful.