While I appreciate the author's argument against being stalked, or giving information to criminals, they ignore the core culprit: information-as-a-service. Most importantly, the author presents a "No True Scotsman" argument around who should develop software and why. 'Mark' and his 'stalking' system may have optimized it, but he sure didn't invent it. The author conveniently forgets to mention that information is a two-way steet. Trust is a hard problem.

> Every reasonable person would act against stalkers like Mark and his cronies. Let’s apply this logic to the digital realm.

The author assumes that a digital persona matches their physical persona. This is not the case. Plenty of people curate content that does not match their personal beliefs, purely for economic benefit. Are they criminals?

>If you’re a criminal, I will not use any application you write.

Author probably has not considered that these writings may result in a defamation case against them, if someone views them as a valuable prospect. If the ruling works against them, does that make them a criminal immediately unworthy of their engineering contribution? If so, a number of reverse engineers who skirt these laws every day would like to have a word with the author.