I actually clicked on your profile since the name got me interested, so yea there's that :)
Commenting also feels good, better than writing half-assed posts (did a few of those). And since it's not too timeconsuming, it's a nice way to contribute with some thoughts.

Also, it does not hurt that when you comment on a good post you get eyeballs from a lot of people vs. having your own post reach 10 people. So it's a nice way to attract quality followers without having to spend a lot of time making quality posts. When you finally get around to writing a masterpiece, you'll actually have someone reading it :)