While far less often acknowledged than those of Robert Howard, Micheal Moorcock or J.R.R.Tolkien...

It's further down the text. Thought it'd be indecent to include in the pic. Blue board and all.

Look it up on the MGE.

Yes. Yes there is.

>handles trolls more faithfully to the source
Which source? Trolls in mythology can be anything from hulking monsters to small tricksters. The only real consensus is that they're humanoid and usually ugly.

I think you can limit it further to the only constant being they're humanoid... Give or take a few organs.

Trolls are a bit hard to define.

In any case, I do agree that of all the mythological depictions, regeneration for example is something that never appeared before Anderson. In that light, it is a bit funny that this is the one bit everyone seems to have fixated upon almost regardless of how they depict trolls.

Kinda like how burning up in sunlight has become one of the traits most strongly associated with vampires. Even though it wasn't a thing before the movie Nosferatu.

I don't remember which one it exactly was, but I recall Vincent Baker once made a tiny vampire game which remarkably didn't do that. Vampires lose their special powers in the sun, but otherwise are unharmed.