Alright, so the more I'm looking into this website, the weirder it becomes. Never mind even talking about the pricing model.
Clicking on their blog, the first entry is
> "How are variables in the dataset for machine learning?"[0]
That doesn't even seem like a valid English sentence to me.
Searching the sentences from the text will send you to various sources from which they were taken without being given credit.
In fact you can find plenty of sites who are seemingly recycling the the same sentences used in this blog. It's pretty bizarre.
[0] https://www.neuraldesigner.com/blog/type-uses-variables