As long as your comments add value through constructive criticism, humor, or engage the poster with questions, then I would advise you to continue to comment a lot. As a fellow minnow you can learn (and earn) quite a bit of knowledge and money through great comments. With comments you also don't need to think up an incredible post. I myself am still fiddling with my style of writing and learning each day. The best place for minnows is the comments section and to write some great articles and take feedback from those that comment to heart. Wish you much success!