When we started out with our company, RescueTime was one of our "competitors": more or less the same technology, but different use cases (discovery vs productivity). I would often find Joe having the same issues and posting in the same support tickets are I did.
I have always followed them since and think they actually have a very relevant product in this world of ever increasing interruptions. My condolences.
A comment on this article mentions a tool called "loadlibrary" used to discover this bug: https://github.com/taviso/loadlibrary. It allows fuzzing of Windows DLL files on Linux.
We also had the same issues with (trying) to publish an extension to the Safari gallery: long waiting times, unclear communication, publishing without notification, etc. Besides that, the move towards the requirement of Xcode does not bode well for managing a multi-browser codebase in JS.
Google and to a lesser extent Mozilla are doing way better on this and seem way more experienced in handling the extension ecosystem.