I’m not sure–it’s kind of subtle, but I think that this is a guy who really hates Macs:

I hate Macs. I have always hated Macs. I hate people who use Macs. I even hate people who don’t use Macs but sometimes wish they did. Macs are glorified Fisher-Price activity centres for adults; computers for scaredy cats too nervous to learn how proper computers work; computers for people who earnestly believe in feng shui.

PCs are the ramshackle computers of the people. You can build your own from scratch, then customise it into oblivion. Sometimes you have to slap it to make it work properly, just like the Tardis (Doctor Who, incidentally, would definitely use a PC). PCs have charm; Macs ooze pretension. When I sit down to use a Mac, the first thing I think is, “I hate Macs”, and then I think, “Why has this rubbish aspirational ornament only got one mouse button?” Losing that second mouse button feels like losing a limb. If the ads were really honest, Webb would be standing there with one arm, struggling to open a packet of peanuts while Mitchell effortlessly tore his apart with both hands. But then, if the ads were really honest, Webb would be dressed in unbelievably po-faced avant-garde clothing with a gigantic glowing apple on his back. And instead of conducting a proper conversation, he would be repeatedly congratulating himself for looking so cool, and banging on about how he was going to use his new laptop to write a novel, without ever getting round to doing it, like a mediocre idiot.