Some people are going to like you, some people aren't. Some people are going to like your comics, some people aren't.
I personally believe the ratings should be based on comics only, but there's no rule that says they have to be and no way to enforce that they are. Someone could easily make the case that the ratings are for how much you like/dislike someone in the forums. Or, how much you like/dislike them based on both their comics and from the forums.
I think the fact that it is ambiguous is going to lead to comments of both types. If there were two sets of ratings - comics and forums - it might be different, but since there isn't, people are going to do what they want with the feature.
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I ate a hooker half a bottle of knife.