I agree with the author. I understand many of the reasons others give here for why icons could be beneficial- localization, literacy, vision issues, etc. all are great reasons to supplement text with icons, theoretically. But I disagree that these icons, I mean those shown as examples in the Apple menu, Safari menu, or Google Docs menus- actually convey anything useful and really do prove the authors point that they’re poorly implemented.

I realize it may be generational and privilege based, as I can read English and have a good deal of computer literacy. To my eyes the icon trend of flat, minimal icons paradoxically ask a user to possess a higher degree of computer fluency to successfully parse the artistic intent of the icon and map it to its function. When these icons don’t accurately convey their function (the Paste icon is a blank clipboard. What’s that do?) and when the design language is inconsistent within the same application and OS (do cogs mean Preferences? Services? you’re building a very confusing world for most of the user group types you claim to be helping.