Eureka!
Turns out setting the PPI setting in X properly does a great deal in improving the consistency of text sizes while browsing the IntarWeb. I should have taken the effort to do this when I first started tweaking xorg on my laptop.
goSFU is no longer a garbled mess of 3-pixel-high text, as well as a few other sites I visit.
Some websites, on the other hand, have began to display huge texts, much to my bewilderment.
This will likely change my attitude towards web design yet again…