This weekend, I’ve dedicated to resurrecting a few more plugins which were withering away without updates between 5-7 years!
These plugins are Disable User Gravatar, Localhost Notify, Cursor Trail
They all needed surprisingly little to get back up and working again. Disable User Gravatar and Cursor Trail actually worked out the box but spat out a few PHP errors.
In all cases some reorganization of code, updating it to use some ‘best’ practices will have improved functionality and performance. Mostly, they got a clean up, and maintaining them should certainly be a lot less (if any) time-consuming.