Personal data only matters from a GDPR point of view. Regarding Reddit's UA and PP, that doesn't have any relevance. They also specifically cover our current problem as an example:
Please note, however, that the posts, comments, and messages you submitted prior to deleting your account will still be visible to others unless you first delete the specific content.
Which is exactly what I (and many other people) did, and yet they've restored our content without our permission. And once again, at least in my case, I only deleted my posts and not my account as of right now. This means every single one of my restored posts has my handle on it, which is personal data.
An individual’s social media ‘handle’ or username, which may seem anonymous or nonsensical, is still sufficient to identify them as it uniquely identifies that individual. The username is personal data if it distinguishes one individual from another regardless of whether it is possible to link the ‘online’ identity with a ‘real world’ named individual.
It really doesn't get any easier to understand, but please make sure to keep glazing spez.
I'm sure he appreciates any support he can get right now.
Surely you have loads of experience, yet you lack reading capabilities. I suggest you re-read the information above and draw your own conclusions. I won't be discussing this any longer, as you must be clearly trolling or lacking in the reading department.