[chickenfries]

Wait, that's awesome. I've been using news feed eradicator but now you're telling me that I can delete my Facebook account and still have a messenger account?

Does that messenger account work for "sign in with facebook" buttons? For example, the only way to authenticate with Tinder is a Facebook account.

[bauerd]

No, you can't use the Messenger account for authentication. At least for Tinder I can confirm it doesn't work, maybe there's an OAuth provider for Messenger that no one uses, idk

[silassales]

No you cant sign into any other accounts with facebook, well you cant without reactivating it. If you sign into a deactivated facebook account even into a game, or something similar, it will count that as a account sign in and reactivate your account. If you fully delete your account, you wont be able to sign in at all.