Such is the effect of Chaos in 40k that any discussion of it causes fall out, and there is inevitable fall out from that fall out
Take these comments, typical reaction to Chaos players 'whining':
Now, before people who don't play Chaos Marines are quick to fob off complaints about new releases, here's a scenario I'd like them to consider for a moment:
Imagine that what you really, REALLY want above all else is a holiday to, let's say, Cancun (as a randomly picked example). You've been wanting this for, say, 7 years now. And on a regular basis, you've been stating this fact quite clearly to your family/friends/significant other/whoever is the one to facilitate this.
Now, imagine that, on no less than 3 occasions to date, your family/friends/significant other/whoever is the one to facilitate the holiday has come to you and said 'Okay, I know you're really wanting a holiday - so I've booked as a trip to Anchorage/Montreal/Vermont/anyplace which is as far removed from where you're actually wanting to go on vacation as possible'! Yes, you'd be a bit disappointed, wouldn't you?
Then, you get wind that your family/friends/significant other/whoever is the one to facilitate the vacation are planning another trip - and you pick up suggestions that, yes this time they have finally LISTENED and PAID ATTENTION to what you ACTUALLY WANT, and are planning that vacation to Cancun!
But then - lo and behold - the new vacation is announced, and again, it's not Cancun, it's nowhere that's anything like Cancun, again it's somewhere that's the opposite to it - not warm and sunny, but cold and icy.
So if that was you, let down all those times before despite having made your express wishes very clear, you'd be forgiven for complaining about it, wouldn't you?
Quite obviously, this scenario relates to Chaos Marine players - what the overwhelming majority of us have been saying for the last few years is that we want rules to represent the Chaos Legions as they now exist in 40k, and we want them to not only play like they truly capture the feel of that, we want them to be effective in games (so we're not just reliant on Heldrake-Cultist spam anymore).
Now, there is NO WAY that the GW design team can say they don't know about this desire - I attended Games Day in 2011 and 2012, and spoke to Jervis, Mat Ward and Phil Kelly and stated this fact to them. *In fact I spoke to Phil Kelly when the current Chaos 'dex had just been announced, and we talked about representing Legions, and he pretty much said he had written it with players being able to field forces representing the Legions in mind (Sadly Phil, it didn't live up to your intentions...).
So it's not like GW doesn't GET what Chaos players are wanting for their army. It's just... I don't know if they're ignoring it, or have some misguided idea about what is better for Chaos Marines in 40k they're working towards.
Now, I should make it clear that, although I'm a Chaos Marine player, my army isn't a Legion one, so it's not like I'm wanting Legion rules for my army - but having played through two average and no better Chaos Codices since 2007, I can totally appreciate why the vast majority of Chaos players want these Legion rules.
At the same time, yay for a new Chaos model, but it's a shame it's for a unit which isn't as good as it could be... I'm waiting for the rumoured Plastic Obliterators with more anticipation than the Helbrute...