If you want to ask a question related to MOC or share your opinion/ideas you can use the forum. This is the preferred way to contact developers and other users since usually it's worth to have a public archive of such correspondence because it contains value information.

If you really think you want to contact the developer directly, my email is daper at daper dot net. Parts of the code aren't written by me (like some plug-ins), so it's another good reason to use the forum