i am very happy it exists!
i have used discogs for more than a decade to buy and keep track of my collection (i have no experience as discogs seller, i do sell a little bit on ebay and vinted). i really don't understand why discogs' rating here is so low, i had overwhelmingly positive experiences. there are always things that could be improved, like postage costs and VAT transparency, but overall it is a decent and legit platform with overwhelmingly decent and legit sellers. you can occasionally get better deals on ebay, but you have more choice and are more likely to find rare releases on discogs. i am very happy it exists!