They countered an assertion that people that a particular statement about the impersonality of email was "only ever" made by people without access to email by asserting the existence of multiple people they had known to make that particular statement about the impersonality about email whilst possessing an email address. Which would make the former statement factually incorrect even if the second poster's experiences were atypical.
There's nothing "subjective" about logically refuting one sweeping general claim with a counterexample from ones own experience, unless we're getting really postmodern about whether people actually recall others referring to email as impersonal whilst possessing email addresses or just perceive that to be the case...
There's nothing "subjective" about logically refuting one sweeping general claim with a counterexample from ones own experience, unless we're getting really postmodern about whether people actually recall others referring to email as impersonal whilst possessing email addresses or just perceive that to be the case...
</pedantry>