I’ve had similar issue for some time. I had not used Pinboard regularly for a couple of years but was still paying for archiving. I started using the account a

I’ve had similar issue for some time. I had not used Pinboard regularly for a couple of years but was still paying for archiving. I started using the account a couple of months back actively and most of the bookmarks aren’t being archived. There’s one that’ll go once in a while, so feature doesn’t seem to be fully broken but yes, when I restarted using Pinboard, ~96% of my bookmarks were archived. Now it’s down to 90%. Last one went through 27 days ago. Also emailed support email, crickets!