Figured this would be useful to pedes that want to start shedding the CCP social media apps (as I figure it's better to blow it up before you get thrown off).

For Reddit, here's what you want to do:

1. Create a burner email account at protonmail.com
2. Scrub your Reddit profile of all information, and change your email address to the burner address
3. Install the Chrome plugin "Nuke Reddit History" https://chrome.google.com/webstore/detail/nuke-reddit-history/aclagjkmidmkcdhkhlicmgkgmpgccaod
4. This is going to take a bit, but use the plugin to nuke your posts and comments. This may take several "several passes" if you have an older and active Reddit account, so be sure to force refresh your profile to see that stuff is getting deleted.
5. Once everything has been wiped, delete the Reddit account
6. Delete the burner email

Once you complete that process, the Reddit account will be toast, and all of your posts from Reddit will also be gone.

If anyone's got processes for Twitter and Facebook, let me know and I'll edit them in.