I came across these in the bottom of my Juma's Chicken Bag. As I finished chewing on the last bone fragment that didn't get stuck in my throat, I noticed the incoming healing actually hits a negative number! My barbarian slipped them on to check them out, and was rewarded with -11.3% incoming healing score.
I started to wonder, does this mean my healer (if he was equipped) would kill me in battle? For some reason, it didn't turn out that way... I checked my stats just using the chat window, because I am not a big stat hound. The only thing I could find dropping was my Barbarian's Revelry, and only a loss of 600 points. I tried a health potion in battle... nope same amount. I did several things to try to get wounded by the boots and not a damn thing. Here I thought I found the first "cursed item" in the game... ever.
I normally run with my Honey Badger and it doesn't seem to be a big deal to my barbarian. Any stat junkie with a parser, want to clue me in on where this hurts???