This motorcycle is too good to skip because of a few isolated frame cracks. We've only had the bike in the States for a year, and the only frame cracks I've seen are from Europe where they've had the bike longer. Like all internet "problems" it's probably a very small minority of people experiencing a problem.
The problem appears to be the engine mount bolt, when torqued only to spec, there is a gap because the bolt is not fully seated. Therefore it seems excessive torque was applied at the factory to fully seat the bolt.
I don't have a problem and have never even checked. I'd guess you won't have a problem either.
"ride more, worry less"
2005 Suzuki GSXR1000 (slightly bent) - Track
2000 Honda VFR800 - Street