Spy.pet is harvesting your Discord history with no ability to opt-out - Stack Diary
stackdiary.com
Discord is one of the few instant messaging platforms that makes it easy to forget that your chat history is recorded. Every chat message you send in a public channel can be accessed by anyone, regardless of the timeline. As a Discord user, I tend to forget that this option exists, especially when it comes to searching for individual users'

The service offers the ability to purchase credits through cryptocurrencies, as well as offers the data for AI training purposes.