Excerpt:
Most major subreddits show a decrease of between 50 and 90 percent in average daily posts and comments, when compared to a year ago. This suggests the problem is way fewer users, not the same number of users browsing less. The huge and universal dropoff also suggests that people left, either because of the changes or the protests, and they aren’t coming back.
Unless it’s changed PDS only grabs comments from your profile. But with a little know how you can delete EVERYTHING using your data-export as a map to all your comments.
Eg. Google NightAuthor site:Reddit.com There are a few listings but none of the content is actually live anymore.