I've been a big name in that "unofficial" subreddit for the past 8 years (u/rmhack), and I check it daily. I put unofficial in quotes because the moderators communicate and coordinate with reMarkable AS, so it's not really quite unofficial anymore.
I don't think it's disingenuous to link to my own work, when that work was directly inspired by reMarkable's own awful software. I would call that "relevance".
I don't think it's fair to praise reMarkable's support for restoring access to files they mistakenly deleted in the first place. And secondly, their support is doing this FAR less than they used to. Some people in the subreddit report they don't do it any longer, since about 2 years ago.
https://www.reddit.com/r/RemarkableTablet/comments/1caeble/b...
https://www.reddit.com/r/RemarkableTablet/comments/1nzwt9c/d...
Another defect of theirs is erroneously RESTORING files that were previously deleted.
They do not have sync or cloud figured out.
https://www.google.com/search?q=remarkable+support+restore+d...
This thread made me curious about remarkable, what would you say is a good summary or entry point to the whole remarkable hacking scene?