I don't know if lying to the commenter is in his best interest.
One who has obtained a certificate is "certified", not "certificated" in layperson English. It's stilted English to say "certificated", even if technically correct.
Obviously it's not reasonable to trust/mistrust someone who makes this mistake, but the nugget to pull from this is that "certified" has a meaning and use in English.
Certificated is definitely a valid word, though perhaps not in "layperson English". In (Commonwealth) legalese, share holdings are referred to as either uncertificated or certificated.
One who has obtained a certificate is "certified", not "certificated" in layperson English. It's stilted English to say "certificated", even if technically correct.
Obviously it's not reasonable to trust/mistrust someone who makes this mistake, but the nugget to pull from this is that "certified" has a meaning and use in English.