Yep, great content for sure and there's good remarks in the comments too. Most of the stuff I'd say I'm aware of but the Safari text opacity trick is new to me.

Side note: The site was down temporarily and redirected to the hosting provider who advertises "unmetered bandwidth" in their tag line, yet can't support a minor influx. :\

Yes, what makes this article extra helpful is that it consolidates the best of the various tricks out there into one simple document.