We hear about problems on here all the time... and that's probably about 0.01 percent of the problems that actually happen.

Given the diversity and sheer boneheaded stupidity of the problems we do hear about, there's no chance that they don't have a ton of false positives... especially among apps developed by people who haven't yet learned how to work around whatever stupidity currently obtains. But you can't learn definitively, because they keep changing the stupidity.