Ooof, it's been a while since the last update! I still use devmarks regularly and people continue to sign up for it, but there is definitely no product market fit. Or at least nothing that people will pay for. Maybe it needs a different pricing structure, different features, or maybe bookmarks is something that people just won't pay for? It is more of a "vitamin" than a "medicine".
However, I did hear from one user who paid for the service! Unfortunately, he only paid in hopes of getting around a bug! I fixed the bug... and then offered to refund him -- that's not how I want to make my first sale. :) He did provide some hope that others might find devmarks useful, so I'm re-focusing on it after spending the past few months on my open-source repositories.
New features: