I have the same opinion: I pretty much don't care about lyrics at all. I also agree that this surely depends on what kind of music one likes: when I started listening to music, I liked Iron Maiden, Metallica and a few other bands like that where you can understand the lyrics, but being a non-native English speaker, it didn't matter to me what the lyrics were. Since then I've mostly listened to stuff that either doesn't have vocals (usually I'm not a fan of vocals) like noise or they're meant to be a part of the general sound (death metal, black metal, grind). Even with music that has clear vocals (like prog rock, Nick Drake etc.), I don't listen to the actual content on purpose, just the way the voice sounds.
Just the other week I was listening to Experimental Products with my girlfriend and she said to turn it off cause she thought the lyrics were terrible (granted, she didn't like the music very much either). I didn't even notice that. But she likes grunge, The Cure, Blur etc. where lyrics I suppose are important (to some anyway).
There have already been some posts here regarding a question I've had for some time: I don't know PE almost at all and want to explore it, but I wonder whether my indifference towards lyrics will mean I won't "get" PE to a certain/large extent? I know Whitehouse and I like them, but again, I don't really consciously listen to what they're ranting about. I recently got a couple Slogun CDs and for a change I was listening to the vocals because I know one of his subject matters is serial killers, a topic I'm also interested in; but even though the lyrics were OK (although, on these albums, they didn't really deal with this subject), they didn't make up for the music that was honestly a little boring for me. I've only listened to them a couple times, so obviously I have more listening to do, but nevertheless I wonder if the only way to really appreciate PE is if you can enjoy the atmosphere the lyrics evoke? I'd be interested to read opinions on this -- perhaps there are others here with the same experience as me?