I'm not offended by photographers using these tools. Photographers are entitled to use whatever cameras they choose. I'm offended by Sony's marketing hype and I question their intentions and ability to service all the camera models and standards that they have launched the last ten years.
The camera business has been a relatively conservative one until recently, even after the introduction of digital cameras. The only reason to change that was to increase the profit of the corporations making most of the cameras. Frequent upgrades of cameras have lead to no improvement in images published whatsoever. There have been technical improvements that have made taking photos under certain circumstances easier, but nobody except the shareholders of companies like Sony, Nikon and Panasonic have much to earn from getting those upgrades on an annual basis.
The result is that many photographers spend more money on cameras than ever before. One can always claim that this is each photographer's own choice, but with a constant commercial pressure and constant technical improvements, it's always tempting to upgrade. When you look at forums like this, forums that started with a fair balance between cameras and photos, it's very clear that the focus is increasingly tilted towards gear, and less towards creative solutions and actual photography.
I find it ironic that some of the best photos on getdpi at the moment are posted on the Ricoh GR thread, a thread for a camera that is not new, has only been released in one version and cannot really be upgraded in any practical way.
The A7 is a fine camera, although flawed in several ways, and many good photos are taken with it. The A9, if it comes to existence, will probably be even finer, but the commercial circus around it is just that: A Circus.
And just to illustrate how short-lived these things have become:
The last time Sony launched something that was even better than sliced bread, the RX1, it was easy to get the impression that photography would never be the same again. The last 6 months, fewer than one photo per week have been posted on the RX1 thread on this forum. The RX1 was introduced in September 2012, less than two and a half years ago. That's how long the Sony revolutions last. That's what I call consumerism.
But when somebody offers me an A7 for less than $500, I'll consider it