[Mintz]

I think the purpose the author shared this technique for is when you need to constantly comment/uncomment a block of code for testing.

I agree with you, though. Once you're done with your experiment, reset the commented lines to something more conventional.

[moe]

Even then, any editor worth its salt supports comment toggling with a single keystroke anyways. Good editors (vim, cough) can even toggle lines or paragraphs regardless of cursor position.

So I agree, this hack is more trouble than its worth.

[pbhjpbhj]

the FF webdeveloper extension is the one I find easiest for live CSS editing - though I'm using firebug more and more - it doesn't have comment toggling (it's just a text field). Such tricks are handy.

Unless you're trying to work them around CSS comment hacks!