Your data is still there for Reddit to monetize.
Overwrite all your old posts with a protest message. Wait a day. Repeat. Wait a week. Repeat. A month, repeat. Then delete shit. Going back to undelete a random post managed in this manner will be too costly for them.
Downside is that I have yet to find a script that actually catches everything. All the well-known scripts miss a lot, likely on account of their limitations.
Not after the first snowfall, they won’t.