I don't think you're correct, Niara. I don't care what Jeremy Crawford may or may not have said, it's plain (to me) by a simple reading of the text of Darkness what it does. It's total darkness that no light can illuminate within, and even Darkvision cannot penetrate it. Only creatures with some special ability to specifically counteract magical Darkness can see into, out of, or through it. This is why devils in 5e have the Devil's Sight ability specifically on their stat block, which says "Magical Darkness doesn't impede the devil's Darkvision." Which means that anyone else who doesn't have that ability cannot see, even with Darkvision. Note that when you look up drow in the Monster Manual (or the PHB), they have NO such ability listed.

In addition, the spell description itself says nothing about "the caster can see through this", and it definitely WOULD say that if that was the case. When a spell affects an area, but DOESN'T affect the caster or some other person in the area, the spell description always calls that out. It doesn't say that in the description of the drow race where it mentions them having the ability to cast Darkness, either. Literally nowhere does it say that drow or anyone else (except things with Devil's Sight or Truesight) can see through it.

Now, I agree that it shouldn't make it impossible to make attacks into or out of it. They should just do so as if blind, whether they are the caster or not.

As for realmslore, I've read the Drizzt books, and I remember him using his Darkness ability numerous times, as well as other drow characters using it. And it never says that any of them can SEE through the magical darkness. In fact, it talks about how they are highly trained blind-fighters (and part of Drizzt's training was in blind-fighting specifically for that reason!), and that's why it gives them an advantage. One of the main reasons they use it, also, is as a specific counter to light spells and the like. Or they use it just to block line of sight to set up other sneaky tactics, or blind a group of enemies (to prevent their ranged attacks, or perhaps force them to move out of an advantaged position), or just to hide themselves in. (Or in clever ways like using it just around the heads of giants and such, so that the giants are blind but they can still be seen by those on the ground.) It has plenty of utility, even if the caster can't see through it.

Obviously, it has the MOST utility when paired with Devil's Sight, which is why rogue/warlock is such a great multiclass. If anyone could see through magical Darkness, Devil's Sight and Truesight would have no purpose. I think maybe you have this idea in your head from some other source, sometime in the past, and you're reading that into the spell description when it isn't there. I've done that sometimes, heck most D&D players I've known have done that from time to time.