This doesn't have anything to do w/ lifting heavy. Or rather, the lifting heavy is fine and good. The part i was making fun of is the whole pain and suffering, put hair on your chest, earn the man card aspect, which is something the CFers seem to excel at (while also forging elite fitness).
Is it going to actually HURT anything? Well it'll cause debilitating pain and soreness as you report, but beyond that I don't know. I recall reading that doing a bunch of high rep exercises in addition to high intensity ones interferes w/ strength gains, but i don't have any personal experience with it. Obviously the physical and mental energy could be used for some other purpose, it's just 6 weeks.
Also applicable to me personally is that Uncle Wendler says "This isn't a time to be "cutting"; cutting is for people that don't have the discipline to eat right the majority of the time." ... well i'm one of those undisciplined people so apparently i should be cutting instead of being a man (which happens to be what i'm doing (by which i mean that i'm on a diet)).
More broadly, i don't know what Wendler knows (though there's a very good chance i'm going to try out 5/3/1 in 2013 and will prob even buy the 2nd edition of his book even though the 1st edition was ... not up to snuff (and that's kind)), but it seems he's gotten Dan John syndrome where whatever you want to do it's all gravy. This may be because he seems to be writing two t-nation pieces a month lately and there just isn't all THAT much new to say. Yes, he's "been there" and paid his dues and he can kick my ass any day of the week etc, but i can't really tell the difference between what he's saying and the rest of T-nation stuff ...
edit: a few months ago i ran across this accelerated video of a CF guy doing 1000 burpees to raise money for charity. http://www.youtube.com/watch?v=f7qkHRAcRgc i start getting anxious after about 2 or 3 minutes of watching it (and there's no celebration or anything at the end since it just fades out while he's still doing them. i assume due to the 20 minute limit on yt vids )