Quite a few different topics circulating here, so I thought I'd wade in with my own views as it's the internet!
Firstly, it makes me happy when people are courteous to me (and I reciprocate). I don't need to know their reasons, be it a future sale, Jesus, or sexual attraction

Secondly, when I read this forum, I understand that it's a place to raise problems and gripes (which is fine), but it's impossible to judge one way or the other any statistical facts about a company's success or otherwise in dealing with its customers. I'm happy for people to get things off their chest here, and as we're all human, cock-ups or failures on the part of others conspire to ruin our day, and if raising some of the disasters improves things for others, then that's a good thing.
Finally, I don't think the thread-starter was intending to wind people up. It's just that when you come on here, you may suspect that buying a golf is going to be a disaster, and all posting this sort of topic just reminds us that the system doesn't leave everyone wanting to pick up a sawn-off shotgun.
Personally, I think that companies would do well to put effort into satisfying those whom the system has let down, even if they lose a bit of money in the short term. It's a shame when they're not geared up to convert a disaster into a triumph of brand loyalty!
In my cynical moments I wonder if the perfect car marketing strategy is to engineer faults which create situations which the customer-loyalty department then turns into life-long devotion for the brand. However,