The common denominators for the very, very, few piston/rod failures are track days plus power mods. Either modify it for more power OR track day the crap out of it. Not both. You'll be fine.
If you want a race bike, buy a race bike. If you want more than 185hp, you can buy a bike like that too. The three people posting in that sleeve thread are a bit overzealous. IMHO. You'd be better off getting one of the (legitimate racing) RS engines off e-bay and putting that in, rather than spend thousands on just some sleeves in a stock engine. Maybe I'll feel differently if I send a rod out of the case. Whatever, I'll still call the insurance company and order another SX/RX to be delivered to me, before I even get home