It's not as polarized as your question implies. Yes, it is spamming if you resubmit "a few times throughout the day". No, it's not spamming if you resubmit the same article up to maybe three times in a month if the first 1-2 times received only 1-2 votes. It's always a possibility that the content is just not as interesting to others here as you think it is.
Also, we're working on an alternative to /newest that will widen the time window for new posts and will hopefully solve this problem.