I'm sorry to be that guy, but you're indeed the idiot. Europa and Titan are both moons. They don't dominate their respective orbits, so they can't be considered a planet. This is how Pluto lost its title as a planet.
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When the hell did Pluto become something other than a planet? You can't be a planet one day and not the next
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A few years back, they reclassified pluto as a planetoid. I believe they have since retracted that, and gave it its planetiness back. And yes, planetiness is the super science technical term. :)
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The original scientific acknowledgment of Pluto dominating its orbit was wrong, this happens constantly in science. More often than not.
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You are some other kind of stupid there mamm