There is another possible reason that I don't like DRLs, and that may be that I'm not seeing DRLs at all. It is possible that most of the time I see lights on, they are regular headlights. I gather from what people have said here, that DRLs are dimmer than normal headlights.

That's one problem. Until very recently, the intensity of DRLs was not really regulated, so some manufacturers chose to use their high beams at full strength as DRLs. New legislation should help that, though. That might be all that's needed, really, but that still means that we'll have to deal with those cars for years. It's not like anyone even aligns their headlights anymore, much less would think to actually spend money on making their headlights less annoying to other drivers.