@thejerz, article author here.

1) I didn't write this while on the job at Appfolio. I wrote it at home, in my spare time, because I like sharing the things I've learned on the job with the rest of the Web community. Based on the upvotes and overwhelmingly positive responses I've received, I think it's worth my time.

2) My work on the CSS for Appfolio Property Manager has greatly helped the development team (mostly back-enders) and sped up the process. We can release features much faster because of it. I'm sorry they're not the features you want (that's not my call), but if/when we deliver those features they'll get to you quicker because of my work.