The IMDb of music! They actually have a reputation system apparently. And sneaked in a vinyl marketplace as well.
The website name sounds like play on words: disc + hog, with hog in the sense "memory-hog", i.e. something that consumes all your computer's memory.
Video 1. Everything you need to know about discogs.com by Vinyl for Miles (2019) Source. Gives a good overview of the website.
Video 2. AnalogPlanet Interviews Discogs Founder Kevin Lewandowski (2019) Source.