Entropy is a term of art in computer science/tech as well, which is apparently the target audience of the blog. Looking at the About page shows the blog is about programming, hacking, and entrepreneurship.
This is similar to when a programmer uses the word auto in a car dealership to mean something other than automobile - because it means something different in a different field. Even when that person first explains what he is about to refer to with the word auto, it is still the wrong word to use in that context.
Your link explains this:
"In 1948, Bell Labs scientist Claude Shannon developed similar statistical concepts of measuring microscopic uncertainty and multiplicity to the problem of random losses of information in telecommunication signals. Upon John von Neumann's suggestion, Shannon named this entity of missing information in analogous manner to its use in statistical mechanics as entropy, and gave birth to the field of information theory. This description has been identified as a universal definition of the concept of entropy." [1]
This is similar to when a programmer uses the word auto in a car dealership to mean something other than automobile - because it means something different in a different field. Even when that person first explains what he is about to refer to with the word auto, it is still the wrong word to use in that context.
Your link explains this: "In 1948, Bell Labs scientist Claude Shannon developed similar statistical concepts of measuring microscopic uncertainty and multiplicity to the problem of random losses of information in telecommunication signals. Upon John von Neumann's suggestion, Shannon named this entity of missing information in analogous manner to its use in statistical mechanics as entropy, and gave birth to the field of information theory. This description has been identified as a universal definition of the concept of entropy." [1]
[1] https://en.wikipedia.org/wiki/Entropy