Yeah, it’s an interesting one. Reddit shadowbans can be tricky because they’re not always obvious or consistently handled. The fact that some of these unban services seem to work without any insider access is curious but not impossible.
What’s likely happening is that they’re using some kind of feedback or appeal loophole. Reddit’s systems sometimes auto-flag users based on behavior, and appeals sent the right way—or worded a certain way—can trigger a manual review. These services might just be really good at knowing what to say, or where to send it, to get attention from the right moderation layer. They could also be leveraging cookies, IP changes, or even resetting certain account metadata in ways that make the system "reconsider" the shadowban status. If they’re doing this at scale, they've probably tested thousands of variations and found a few that consistently work. But yeah, the varying unban times and lack of insider access do point to a repeatable method rather than someone pulling strings internally. Reddit doesn’t make shadowbanning transparent, so it makes sense that someone would try to game the gray area around it.
Pretty wild how creative people get with it.