i have no real scientific proof, but i have been pretty heavy into computers for over a decade and this is basically just a computer dvd-rom. i have hacked, upgraded and o/ced every machine i have ever had and had no ill effects of it whatsoever, as long as it was done in the correct manner.
i would go to say that these people really do not know what they are talking about and they might think that o/cing a cpu without adding any more V is going to somehow kill it faster....
again, this is my .02 and this has been my experience for more than the last decade dealing with computers.
hell, a friend of mine still has an old playstation 1 i modded for him and it works like a charm and is used by his kids probaby 3-6x/week (IMG:
style_emoticons/default/smile.gif) and those mod chips kind of do what the modded fw does, just a different way of delivering the code needed to get the job done.
in the end i am just give a guess based on readings of thousands of threads in hundreds of forums and personal experience, both of which say there probably is no issue with running a modded firmware, but i could be wrong. from what i understand the modded firmware doesn't make the drives do anything they aren't suppose to do physically or go to an area of a disc they are not suppose to.