This thread isn't about "photography", though?
While it does have a few "not so nice" photographs as admitted by the TS/photographer, it is really a thread about camera equipment and not photography per se.
Ask yourself, what is this thread about, really?
If it was a thread about pictures taken by an expensive setup I wouldn't even think about poking fun at anything; in fact the TS has another thread with pics taken by the 200/2 that aren't all that bad and that I haven't poked fun at or thought about. But I ask again, what is the purpose of this thread if you boil it down?
If someone is showing off their recently purchased very expensive kit then they're inviting comments about their financial situation. If anything, they started the discussion. If they were showing off their pictures taken by very expensive kit, nice or otherwise, then I would agree with your comments altogether.
"Look at me guys, I've just bought this very expensive camera and lens and I was one of the first ten in the country to get the camera!"
Let me get this straight - if you have the money and want to buy your stuff you go right ahead, that's your right and your prerogative and I'm not disputing that. It doesn't matter if you couldn't take a photograph to save your life or if you were the best photographer in the world.
But if you intend to show off your new and expensive kit then I think a few comments in relation to that are not out of place.
This is the problem with photography in Singapore, as I've bleated about numerous times. More people get excited by exciting kit than they do about exciting photography.