NB: This is about https://3dfilamentprofiles.com/ (and not the user presets github project) but the user&post it was quoting from above has been deleted.
I poked around the site some more, as far as I can tell it has 1500 filaments and zero profiles. It does have “technical information” section (not profiles) which is usually blank, and it doesn’t seem to even have the capability to upload a profile.
A bunch of the technical info appears to be simply copied from the spool (like nozzle temperature 190-220C, which I guess is OK since it isn’t profile) and the color hex are just what the manufacturer supplied.