Commenting back and forth on articles will it pay?

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I do a lot of writing and comment on other peoples articles. But they don't comment back on my articles. Doesn't it make sense to keep a good commenting system going. I think if more writers would get together and comment on each others articles the money would start flowing in. But for some reason people feel they only need to comment on one article and that's all. I think a back and forth article commenting exchange would work. What do you think?