If HG does what a person needs, they may not visit the forum. That doesn't mean HG isn't used anymore, just that it may not need any attention.
But that is kind of the problem. Just because it works perfect for someone doesn't men that it don't need attention. Since HG is very flexible and can do many things, and not every person is a computer expert, there is always questions that need to be answered. And even though some persons do what they can, only Gene at this point have enough knowledge of the code to answer some of the more complicated questions.
And maybe Gene, as you, are perfectly happy with what HG does, and therefore isn't very active. But my opinion is still that software is never done and there can always be improvements and bug fixes. Because in some way, even if Gene is happy with the current features, I believe that when you start a project like this and make it public, you want it to grow and get a life on it's own. HG is great, but the community is not big enough for the one and only lead developer to disappear. Sure, we don't know why, but to get over some critical point in the number of users of HG Gene is still needed.
And even if Gene appears in a month or two with some new version with new features it is only for the few users that already love HG. To many new users will have been lost already.
Software is, no matter how amazing and perfect it is, nothing without support.