Here is a list of hints without an owner, that could use updating. If you are the author of a hint and are no longer interested in maintaining it, please let us know on the Hints mailing list.
These hints are explicitly marked as orphaned. This means that whomever is willing to do the job may take over the hint. The original author will, of course, still be credited.
The following are topics that users have shown interest in. If you have knowledge on these topics and would like to write a hint, please drop a note to the Hints mailing list and you can get started!