Yes, it's funny, isn't it, how people who've been life long Catholics, who slept or played their way through their classes in the faith in school, who barely went to Mass between baptism and confirmation, then went to a Catholic Church and demanded to be married in the faith (and the priest told them, basically, not until you understand your faith), then went to get married in a courthouse; it's funny how many of them go to a Protestant denomination, which often doesn't even celebrate the birth of our Lord with a worship service...very funny.
Those of us 'new' Catholics, with 10 years of daily study (which habits they may have gotten from the denomination they were born to, admittedly) do know more about their faith than many lifelong Catholics, sort of like how foreign-born naturalized citizens of the US know more of the history of the country.
I think we know what you say. You limit God's word to what we've declared as Scripture. You forget that God speaks in varied and wondrous ways. We don't, and we know how to determine what is Tradition, and what is just traditions of men.