A few factors, I think. Firstly, I am much more politically aware at this point in my life than I've ever been. Beginning with the election in '16, I have decided I need to become a better, more informed citizen, who's capable of making informed decisions (votes). This "cesspool" has been a major factor in that journey. Contrary to what you may read, the PSF isn't really a liberal echo chamber. I've been informed by many along the political spectrum, including but not limited to @Henry Ford, @Maurile Tremblay, @IvanKaramazov, @TobiasFunke, @Ditkaless Wonders, @Sinn Fein, @roadkill1292, @The Commish, @krista4, @Joe Bryant, @SaintsInDome2006 (and many others), and am very appreciative for the wide range of opinions and life experiences documented here. And while I am firmly left of center, I get much value from many on the "other side" of things. So thank you to all that contribute thoughtfully here.
Secondly, speaking specifically to "why Pete?", he seems like a great candidate, and not only that, the type of president we as a nation could really use right now: smart, articulate, thoughtful, high moral character, strong convictions, and young. I really think it's time that we move on to a new generation of politicians, and so far Pete seems to most closely match up with what I want to support in a politician.