The fact is, there are significantly more comments than there are answers or questions combined.
]]>That said, it is a problem that comments too easily go unnoticed. I don't know what a good solution might be. For example, I'd like to be notified of comments to posts I have commented on myself, in case it is my comment that is being commented upon and I would like to reply. (Which makes this post a comment on commenting on comments to my comments. Pardon me while I go and gaze at my navel for a while.)
]]>So, yes, they should go ahead and post comment as answer. They might even get 50 reputation from that :)
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