Hi, I'm Makaru, an alias I use on many sites, particularly BZPower and Brickshelf. I can't say I'm an exceprionally good MOCist, but I have made some creations I am rather proud of. Displayed on MOCpages are the ones I'm fond of, or the ones that hold sentimental value to me.
So yeah, look around and add a comment or two. Even if the MOC is old, it's good to have feedback. Everyone can do with a little improvement.