Good point. If you feel that 4E fans are the only ones shooting at you, maybe it's because you're only shooting at them?
Actually I'd say it's more because your favored edition is the one being spoken of most with the impending change looming. You guys, with what I would consider good reasoning, are defending your favored game as a new one is coming along. You hope by being vocal you can preserve aspects of the game you most admire. In that regard, you're drawing fire. And, the more vocal you are, the more critics will come out to naysay what you put forth as good qualities. In the grand scheme of edition changes, it's merely the desultory precursor to the real edition battling to come as it becomes more evident what 5e will or will not be.
In other words, it's not because 4e fans are more willing to counter arguments against their favored system, or that 4e necessarily is more universally hated by D&D fans (or grognards or whatever diminutive you wish to use) and is the only one being shot at, it's just that it's next to go by the wayside (unless WotC is to be believed and they really can somehow rein-franchise all edition stalwarts) and is just in a circular cycle of being defended, attacked and defended again.
Give it time. Grow some thick skin. Hang in there and frankly, even if I don't agree with you, fight for your edition. Just make sure it's in a meaningful way. ENWorld may be one of the bigger RPG sites, but an organized effort to let WotC know just how many fans 4e has and specifically, why 4e has its fans, would probably serve your cause better than drawing, taking, or returning fire in a forum that only represents a small fraction of the potential RPG customers out there. Mostly, I'd hate to see anyone banned or disciplined over this.
