A hundred complaints is often the same 4 people saying it 25 times!
I also visit a competition flavored gun forum. There are guys who shoot many rounds a year through their "lock" S&W's. Like 3000+ a year, with some going into 5 figures. There are also some top revolversmiths who claim S&W is building the best guns ever...EVER!
There are also a lot of guys waxing poetic on the internet, telling how everything was better "back in the day" and those ungodly lock holes just ruin the gun.
S&W sells a whole lot of revolvers. Most people really care less one way or the other about the lock. That's because it doesn't matter one way or the other. They're good guns, with a great warranty