What I learned:
Everyone is either deranged or an asshole, the only thing more irritating than crazy fucks are the people who want to be crazy fucks, some people really do use the word "waifu" unironically, the universe is a shithole, the internet is an amusement park, fandoms are bullshit and FATAL is a terrible game.
Also, Kiwis are simultaneously the best and worst people on the internet.
No, but seriously, Kiwi Farms kept me laughing and helped me realize that I can be a lolcow if I don't keep myself in check. I also love the community and how...balanced it can be. You can get better insight here more than say, tumblr or DeviantART.
The Farms have changed me - in so many ways! (And all for the better, I might add...)
Thanks to Kiwi Farms, I have:
become less of a bleeding heart
less inclined to suffer fools gladly
learned the most useful word in the English language - "sperg"
come to realize there is much more autism in the world than I ever dreamed possible
got all sorts of inspiration for my own "creative" endeavours
made some awesome friends
...and my dreams are much more interesting/disturbing.
Kiwi Farms also taught me how a lot of YouTube drama can be really self-serving and over the most petty shit. A lot of it can be fun but there's crap that you have to sift through to get to the really funny content which can make specific kinds of threads more of a challenge than others.