Not a small factor in this is the emergence of the Internet and fora like this. No longer does one have to invest thousands of dollars in concordances, lexicons, and volumes of patristic literature to be able to study and explain to others the teachings of the Catholic Church.
But it does annoy many who don’t have a clear theology of their own. How many times have folks here expressed extreme displeasure at having Scripture backed up by the Catechism (or vice versa) quoted to them.