What? Profitable is profitable, there is no ambiguity there. The post linked above is talking mostly about opportunity cost (your own) and growth. Is your business sustainable? Is it growing? Is it worth doing full time? Those are all critical questions but the concept of profit does not include them.
The disagreements in just these small sample of comments is a little bit of an example that people don't always have the same idea of what 'profit' means no matter how well defined you think it is in the lexicon. The alternative is to always take what people say at face value, but then that can be a little bit reckless as well.