Don't be too hard on yourself, we've had far more abrasive people enter this forum before and are bound to see much worse in the future.
That said. i can agree with your statement to a degree. I do think Geno is over hyped a bit, only when people go on about how he HAS to be in or how he deserves it. People often forget how insignificant Geno really is to video games or Nintendo as a whole. He was a supporting character in one game.
That said, he was a REALLY cool character is an AMAZING game. If he gets in I will be very happy and won't for a minute say it was undeserving, it's just important to remember that he isn't OWED anything. Leaving him out is not an insult or an injustice, just an unfortunate occurrence.
I want him in, but him not getting in isn't Like leaving out Mario. Heck leaving him out isn't even as unfair as leaving out Dixie (Sakurai may have said he likes Geno, but DIxie was actually going to be in Brawl before getting cut)