Given the nature of Apple, it's hard for a lot of PC folk to not despise the company. Most feel about Apple vs. PC the same way they feel about classic cars vs. modern ones. Modern cars have better mileage, better handling (arguably), more safety features, more gadgets, etc. But the one thing they don't have, is the ability for you to fix them yourself - not without PhD's in astrophysics and a BSS in computer tech anyway. Compare that to the cars of yesteryear where you could even teach your most rebellious teen how to maintain and repair them. Freedom. That's what it's all about. You can even build your PC's from scratch. Upgrade them when you want. Replace parts. Keep things running for decades. No concerns about voiding warranties. No repair queues. Nada.
And that's just the desktop issues with Apple. Don't even get me started on all the other products that start with a lower-case "i" and the issues people have with it. I don't really care about the portable market because I can't afford it (all I carry with me is a non-smart phone with no internet plan), but gosh... the forced marketing. The forced marketing. I remember when the big selling point for iMac was "Ooh, look, you get a choice of colors!" That's nice. I've been giving my PC's custom colors, lights, even a frigging lumadisc (before I thought better of it because it produces a nasty short-range EM field) since before PC modding was even a fad.
That said, I wouldn't doubt if I end up using Mac one of these days, depending on what Microsoft does with Windows. I'm still living happily with XP after all this time though.
Just saying, there's a lot of animosity between PC and Mac users, and it's there for a reason. I'm just giving you this as a possible reason you got that reaction. There probably were some pretty ugly fights on the official CoH forums over it as well. It may not be a reflection on the overall gaming community. Don't base it on quarrels over which computers are better. It's when they start discussions about different builds, character classes, PvP, balance, etc. Are they ugly or civil? And most importantly, what do they say when someone asks "How do I?" about an issue everybody knows the answer to? Does the poor guy get hazed like a frat pledgie, or do they give him helpful advice?