I don't know if anyone else noticed this, but the startrekhistory site appears to be guilty itself
of using something without giving proper credit.
In their section on deleted scenes, under "City on the Edge of Forever," the site presents an unused, never-aired music cue by Fred Steiner. They must have gotten it from La La Land's complete box set of Star Trek
The La La Land CD producers jumped through incredible hoops to get all the many
stakeholders involved to agree to the project. Then LLL worked for like a year, going through tape reels and studio paperwork to meticulously identify and document each bit of music. And they had to make digital transfers of all the tape reels and perform restoration work
on the resulting audio files.
Startrekhistory presents the "City" cue as if it was the site's own discovery. I don't see any credit or thanks given to La La Land Records or the individual producers.