I've got a HUGE list of abandoned mods I'd like to add to the list. As long as it's taken seriously and action taken. I don't feel the need to waste my time.
I agree with Pedge on this topic %100. It's frustrating that Authors don't respond. As mentioned yeah people do have lives to live. I get that. However when you(the Author) develop a mod and post it on the site, you are pretty much committing yourself to maintain and update the mod for others to enjoy. My opinion.
There are some mods that had definite potential. I wish that they weren't abandoned, with will be included in my list on the provided link.