Now for whatever reason seeing this kind of introduction always brings me out in a rash but that's hardly an appropriate way to start things off.
You want to find reason to begin to commit yourself to MLP and to the fan base? Well then I'll do my best to see that this is exactly what happens. Irrespective of what your agenda may be you will always find a place here in this particular forum, as you may have already noticed the Brony community that resides here is incredibly welcoming and hospitable to all newcomers but as an artist, or rather an art connoisseur, you will no doubt find some sections of this place more appealing than others which is perfectly fine and bringing out one's talent through their enthusiasm is something that is actively encouraged here. To describe My Little Pony: Friendship Is Magic as art to someone like me is quite perplexing and makes me curious as to exactly what kind of person you are, this is a good sign as it means that someone here has already taken an interest in who you are, extra points for guessing who correctly .
What you have asked us to do is effectively sell MLP to you, entice you with what it means to be one of us and why we feel so committed to what is admittedly a rather bizarre yet utterly wonderful creation, I'm sorry to say that I do not consider myself to be particularly skilled in marketing and as such feel that it would be inappropriate for me to do so. I, personally, don't consider MLP to be art at all but rather a kind of philosophy, a way of life and a new way of looking at things and the perceptions that it has given to me over the course of my time here are nothing short of wondrous. I can't really elaborate upon why I feel the way I do as I believe that it is an experience that is different for each and every person but it has to be more than just seen to be believed, you won't become a Brony by simply trying to understand us no, that's not possible, you have to feel in order to truly understand.
The only way you can expect to fully comprehend what we are is to become one of us, that's probably our biggest selling point, the fact that it takes one of the most double-sided elements in life to make the jump; curiosity, it's what brought me here and I'm hoping it's what'll convince you to stay.
Now weird, overly-philosophical ramblings aside we have other questions to answer! Starting with one I know for a fact that I can answer sincerely; who is my favourite pony? Well if my Avatar image doesn't scream the answer you're looking for then I'll spell it out to be on the safe side; Applejack is by far my favourite pony, if you want answers as to why then you're gonna have to do a little probing yourself!
I've, in truth, not been a Brony for very long, I've only been one for 2 months now but that's been more than enough time for it to truly mean something to me and to become a very significant part of my life. I'm also only 18, though I would appreciate it if you don't begrudge me for it, which means I'm not terribly experienced in the ways of the world but in spite of this I've found something that I know will never be usurped as one of my favourite things about this world; people, just ordinary people. This is a result of what I have found by joining this fan base and what I have discovered by embracing those who welcomed me, making this jump is a life changing experience and there are people a lot older than I who can attest to this.
The choice is ultimately yours although I do sincerely hope that you do choose to join as I would very much like to get to know you better . Regardless of your choice I wish you all the best and all the luck in making your decision, feel free to take as long as you like cause we aren't likely to be going anywhere anytime soon!