First: Does it bother you? If you don't need it, don't use it.

Second: If you want to describe multiple ways to solve a particular problem, doing this in multiple answers is perfectly valid. Just because you are fine with doing this in one answer doesn't mean others wouldn't be justified in using multiple answers, even if it would be just to get separate votes (and reputation points) for both answers.

First: Does it bother you? If you don't need it, don't use it.

Second: If you want to describe multiple ways to solve a particular problem, doing this in multiple answers is perfectly valid. Just because you are fine with doing this in one answer doesn't mean others wouldn't be justified in using multiple answers, even if it would be just to get separate votes (and reputation points) for both answers.

Regarding your edit: I wouldn't consider this "fooling" the system. If you provide multiple valuable answers, then that's just fine. Also, if you end up writing filler or crap answers, you won't gain upvotes and thus, your answers don't contribute to getting a tag badge anyway.