What sort of content is in your field of type text? Certainly, in English prose, “rob” is different than “Rob”
I disagree. While the grammar for written English has rules when to write "rob" and when to write "Rob", that distinction usually carries no semantic difference. Consider:
"How to Rob the Hump of a Camel"
"the go programming language was invented by rob pike, ken thompson and robert griesemer"
Here "Rob" is a verb and "rob" is a first name, the opposite of what you probably intended. Yet the the first sentence is grammatically correct if it is a title and while the second isn't correct, few people will have difficulties understanding it (many probably won't even notice that it is all lower case).
Spoken English of course doesn't even have a case distinction.
and if the content is for a web page (or in my experience, the content of medical reference books) these differences are critical.
A web page? Rarely, at least for the human readable parts. Medicine? I don't know. There may be names for different substances which differ only in case. But those are parts of a formal language, and as programmers we already know about case-sensitive formal languages.
I don’t think it’s solely about the semantics. One might be contractually obligated to always spell a name in some exact way including it capitalization. For instance if referring to "Rob Sargent” as a quote or accreditation, then it’s not okay to let a typo “rob Sargent” go through.
