Now that we've effectively covered bad stuff, let's reveal the good parts.
First: The music is craze amaze. Songs I've heard from aviators, forestrain, decibelle, and many others that take an incredible amount of time to list off, make eye opening songs that make you feel good about yourselves and some may even help you through some situations.
Second: The people. Every person that is discussing this with you is so you understand that you're not alone. The people that take the show for what it's meant to be and are willing to help you through your discomforts or insecurities or what have you. The people that are willing to unify this world for the better by spreading love and tolerance. The people that will stand by you and are willing to help you at a moments notice. We are about something that's bigger then I'll ever be. It's about honesty kindness laughter generosity and loyalty. These are, have been, and always will be the traits that make up the magic of friendship. I define a brony as an individual that watch the show and believe in their heart that the messages that are represented through the show, are correct in they're entirety, and at which point, the defining characteristics are put into an everyday practice.
There are many more reasons, none that I can come up with at this moment, but they are there. So how bout it. Let's come up with more good reasons to be apart of the bronies.