I've seen the split time bug but not any of the others. If they really do occur, they can't be very frequent, or their effect is subtle. The four last items aren't bugs.
And even though you may think so, I'm not trolling. I simply don't agree that GT6 is full of bugs, especially not to the degree where it has a serious effect on the game. My experience is that I've played for probably 5-10 hours every week for two months and I've seen a handful of bugs. The only one (!) that had a real effect on gameplay was the timed race finish bug that gave you an incorrect position. That's been fixed.
So stop accusing me for trolling and let's keep a proper discussion. Any case that's too fragile to stand through a proper discussion is too weak to begin with, so I don't know why so many around here are afraid of facing opposition. Instead of arguing for their cases they make up all kinds of lame excuses: "oh, I don't have the time / I have better things to do", "oh, only some people are qualified to see these things (and yet they effect everyone)", "this is a popular belief so it must be true", "trolling", "fanboy", etc.