Follow these steps if you don’t know how to see deleted Reddit posts through Wayback Machine:-
1. First of all visit the Wayback Machine’s website.
2. Then go back and get the URL of the post that you want to see on Reddit.
3. Then place the link on the provided search box on the website.
4. Then select the year, month, date and timestamp when the archive is taken.
5. Then wait until Wayback Machine shows the snapshot of the deleted post.