The API is still available in dev mode, just obtain the client ID and secret to authenticate the app. I used shreddit this way, it was more thorough than PowerDeleteSuite when I gave it the GDPR checkout. Both tools produce a log so you can refer to the posts/comments later.
There were tools to do it for your… but after the massive migration they blocked a ton (part of the API block that drove everyone away)
The API is still available in dev mode, just obtain the client ID and secret to authenticate the app. I used shreddit this way, it was more thorough than PowerDeleteSuite when I gave it the GDPR checkout. Both tools produce a log so you can refer to the posts/comments later.