CRH, I have read it back - your reply at 13:06 comes across very dismissive, just because you disagree. As Nick pointed out your "Mr Expert" was uncalled for. As was editing your post at 22:07, to add a "smart-alec" comment about "what do you do again", when I'm quite certain you damn well that he's in the security business.
You're the one with the attitude problem - and he didn't slag your bike off, all he said was that it old. Given that its around 10 years old, and possibly 14, he's not wrong.