No worries on my end. The more the merrier. We can use having new people topping either league. I spend a lot of time reading, too, and there's plenty of things I do read where I end up without a comment. I guess that's just the way it is around here. I think most people do what you do as far as commenting goes, so you're in the majority, really. And as far as that goes, I'm sure most people think some kind of meaningful comment on their post is better than none at all.
I was on a roll for four weeks atop the engagement league and the last two have been let downs, so I'm ready for a 'take down' again. :)