Yeah, I got what you meant. And yes, way too many people do that. And an unfortunate trend I'm starting to see is that kind people making a site that works in IE *and Gecko* (due to Firefox' popularity), but fails miserably under Webkit and Opera, because instead of actually *learning how to make websites*, the retards do their usual IE-only routine, with an added step of tweaking to make it work in Firefox, which means they end up with something that's just as much a horrible mess of code as the usual IE-only sites are, except it happend to match Gecko's specific quirks and oddities enough to work there as well.
The most outrageous example I've run into recently is some project made by some company in Vietnam, who claimed that the site didn't work in Safari "because Safari doesn't support DIVs". Turns out that they didn't understand the difference between id and class, and had given multiple different div elements the same id. Beautiful.
...on second thought, why should I spare them the humiliation? It was made by this group of incompetent fuckers.