[JaggedNZ]

My biggest pet hate is borders inside borders and text inside tight borders. This dark pattern is used on mandatory health warnings on cigarette packaging in my country (and many others) I don't think this was an accident...

In a more applicable example I removed most of the borders and heavy rules from a information dense page of a popular B2B site I worked on and the readability / scan-ability of the page increased dramatically and it had a very positive reception from out clients.

I do think one thing is missing from this guide and that is point lines or point rules. This is something I think I learned reading one or Edward Tuftes books. In print horizontal rules of 0.5 - 1 points (see: https://practicaltypography.com/rules-and-borders.html ), however on the web I find dark grey 1px bottom borders to have a similar effect.