Both posting and commenting are necessary to getting noticed here. Some of those people you commented on their blogs may visit your blog to see what you blog about. Some may even want to support your post, but when they get to your blog and not find any recent post, you may not get such support. Though it's very discouraging for someone to create a meaningful post and not get anything. You can't even tell if anyone even showed interest in the post. This is one of the reasons why the view counter should be brought back. Even if your post don't get payout, you can be able to tell if people showed interest in it by noting the number of views it generates. Most writers won't care too much about post's payout if they can be able to see their post's view count.