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The Reddit app-pocalyse is here: Apollo, Sync, and BaconReader go dark | Many major third-party apps are finally shutting down.
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https://github.com/j0be/PowerDeleteSuite/
This is the one I used. It deletes everything. It also edits all your comments to whatever custom message you want. This means that if reddit attempts to revoke your comments they'll get your custom edit instead of the original content.