First time poster, long time reader...
I feel I really need to jump to the defence of the cheer squad here as I think this is an unfair assessment of the current group. I truly hope that this experience was before it revamped in 2013, particularly if I'm one of "bunch of nasty older women" you refer to. (Geez man, I'm only 40 - I thought I was hiding it well!)
Since it was rebranded as The Demon Army we've worked bloody hard to improve just about everything. And let's be honest, it was previously a fairly lack-lustre group, struggling in what was an awful period for the MFC. The group now operates as a professional business, we're pushing 500 members, have a huge following on social media and are getting a totally different demographic (more kids down the front, more beers up the back). We never turn anyone away if they're a Melbourne supporter. And most importantly, we cheer even when we're losing miserably. We'll be freakin' awesome if we ever start winning! Both Collingwood and the Bulldogs have modelled their revamped cheer squads on ours.
I'm so sorry you were turned away in the past. Please try again some time. I promise you'll find some of us "nuffies" are quite socially acceptable. Or unacceptable, if the situation calls for it.