Consider e.g. conspiracy theorists, in particularly those who apply magical thinking to language. These usually (or at least pretend to) have a view on language that is very strict on what they receive. They are often also strict on what they send, but perhaps not as strict as with what they receive.

I consider those conspiracy theorists as my enemies. I try to be very liberal in what I receive and am strict in what I send only when necessary (i.e. usually when writing mathematical stmts, etc).