A bug report that doesn't provide hardware configuration is in many circumstances less useful than one that does. bug reports that just say "it crashed when i did clicked on pretty icon" are useless, and should be ditched anyway. I'm more than familiar with the binning process, I even explained it to somewhere else in this article.
Just because many (almost all after long enough) are binned below their actual limit doesn't mean they all are, and I've yet to see a part labeled 3.3 binned down to make more $$.
The simple truth is you can't trust a software failure isn't caused by hardware as it is and adding in the uncertain joe random creates by oc'ing (many people oc the same way script kiddies hack) makes chasing those "bugs" down not worth the time you could be spending on tracking down real bugs.
And if you think the only thing that can go wrong with an oc is heat, you're exactly the sort of person who's likely to introduce a subtle issue and blame it on the software. For reference I started modding C=64 when they were in their heyday. I've etched my own boards, soldered ram chips (not the current memory board we use in pc's now, actual DIP dram chips) and have my current cpu water cooled at stock speeds for stability.
Mycroft