Alright, before I launch into a reply on this, I'm going to go with a two-line pedigree. I am one of the most mild-mannered and patient people in the Foundry, just ask anyone. At the same time, I make insightful but not inciteful comments on maps and the Foundry in general. So everything I say is not driven by hate, ire, or a generic disagreeableness.
1.) The obvious clan manipulation of the "quenchers", or what ever it is that they call themselves.
Manipulation is not the right word. Guidance is. Every single "veteran" was once a newbie. They've done the system, they know what should be expected and what should not be, and they know it better than any post of rules and regulations could ever teach. Do they know it perfectly? No, but as a whole they offer a better insight than a bunch of people poring over a bunch of generic rules could ever have.
2.) Quenched maps that are NOT received well by the community, (this revamp for example). Along with others like British Isles, and a whole slew of cookie cutter pieces of crap.
We as humans are very nostalgic. British Isles badly needed a revamp. It may have been foundry history and one of the most popular maps of all time and all that, but it was hard to understand and looking extremely dated next to recent maps. It took well over 18 months for that map to release, mostly because of the worry about the complaints the revamp would receive JUST BECAUSE IT WAS NOT THE ORIGINAL. It could not be helped. The revamp was an improvement over the original in every way except the nostalgia factor, which it could not fulfill.
As for Germany, in the attempt to revamp for better looks pep went one further and aimed for geographically accurate. In the process he sacrificed readability and recognizability in terms of gameplay. Concerns that were somewhat allayed by the fact that pep took forever to update (easiest way to forget or downplay is to not need to comment on it but once a month). It's still the same map as the original, but it had flaws that the only people still following the thread (ironically, mostly the "quenchers") were numb to by the time it released.
As for "cookie cutter pieces of crap," I will have to disagree. While a lot of maps can be classified as a bigger or smaller Classic with different bonus regions, they all look distinct. The only places where there is similarity is where it is intentional (USA Map Pack, Egypt). Does it possibly boil down to the same strategies as a normal game of Classic? Likely, but a lot of people like that gameplay and only want to play it on new and interesting concepts. The so-called complex maps that push the envelope of what CC can do are a far minority in terms of larger interest.
3.) An overall bad reputation, that keeps away people, that just do not wish to deal with the overinflated egos, of a few that are, or act like children.
Welcome to art. We all have egos, especially if one is lambasting our countless hours of work on a concept that is "just gorgeous." I remember gloating on the first version of The Citadel to my father and all my friends. And it sucked. It's a hard medicine to take and the Foundry isn't exactly Mary Poppins about it. But hard love is what peer review is all about. I have bragged to people who could care less about how the Foundry implements peer review in one of the most civilized and enlightened manners possible. A few people have opinions, but most people who post have informed and educated opinions. That is priceless. Is it, as a whole, always in line with my vision for the piece I have created? Very rarely. Is it, as a whole, exactly what I need to read to make it the best piece for the site? Most certainly.
The Foundry needs new blood. As referenced by others before me (The Neon Peon), most maps in development are by new folks.
The foundry needs to dish out a little humility to some of its members. It does, but in a tough love sort of way. It tosses humility at the hands of a cartographer, telling them that their nest egg of massive effort needs work. Commenters are not bound by the same rules, and shouldn't be, as the sum of opinion is what should decide where to take a map next.
The Foundry needs to take the less played maps off of the roster, and kick them down to dead projects, where new or existing cartographers can have a go at making them better. No, the Foundry doesn't. Every single map on the roster earned its place. Is every map ridiculously popular? No, but they don't need to be. A lot of people, including me, like to sample every single map out there. Sure, I have my preferences, but knowing there's a new experience out there just waiting for me to click "Join Game" makes me happier as a player.
The Foundry needs a Revolution. To put it bluntly back, the Foundry is a constantly evolving revolution, learning from its own mistakes and constantly seeking new directions. It's not a disorganized mob of creative power, but a guided team of improving creativity.