I make yogurt and it does require added bacteria, in addition to anything that might be naturally present in the milk, so I'm not sure this is wrong.

How do you know she's not a paying member? The number of people she follows doesn't indicate membership status. Some people like to rely on their feeds and prefer to follow topics instead of people or publications.

Also, these are staff pics, not boosted stories. Same effect, but not quite the same process.