Bummer, hate stripped chainring bolts. Sounds like someone got a little crazy with the Loc-tite! If you end up stripping them all, take the bike to your favorite shop and have them drilled out. If you want to try it youself, lt me know and I will help. And yes, disc brakes can be "whispered" to. I'd whisper to your bike, but it probably wouldn't hear me from California!
Asa