I am not suggesting you need to do 1000+ comments a week. But more is better. Try do another 10-20 this coming week!
10-20 comments per week is easily achievable. Even with the quality over quantity approach. I focus on writing meaningful comments. Nowadays I write probably 3-5 comments per day, but I am really not counting it.
Absolutley! Consistency is key. In posting and in commenting.