If one has taken a 'swim' in the Talmud, it would become apparent that Rebbi Meir is often cited as "he used to say". I cannot express with certainty that it is a completely unusual phenomenon in relation to other Talmudic personalities, but it is something that has caught my eye.
What might be the reasoning behind this frequency as regards Rebbi Meir; and whether or not it is indeed unique to Rebbi Meir, what would be the general significance to such a terminology? (I haven't searched for every Talmudic name along with these key-words, so I cannot confirm any reality other than my impressions while 'swimming'.)