yeah, it freaked me out when i noticed it, but i checked the plug, took the head off, and there seems to be no damage whatsoever. i went through 2 gallons of gas, so 5 tanks or so, all at WOT before i noticed.
i obviously don't recommend anyone else trying that, but i am happy that my motor still works great.
also, i wouldn't BS about that. in fact, if i did blow up my motor because of it, i probably would be too embarrassed to post it