The thing is that while flavor is very important, I feel that they should be giving me advice on how to preserve and maintain that flavor, and not saying 'don't use this!'
Let's take something that we're not supposed to use in general in dark sun...say...Sorcerers. Now if I have a player who likes sorcerers and wants to play them, I have to tell them 'tough noogies, mate!' And someone plays a character they're not as interested in because I like the setting. I may suggest they play a wizard, or a templar, but that's not really the same is it? Where's the blood of dragons? Where's the charismatic miracle-workers? Where's the 'natural magic'?
What I could have used instead of 'don't play sorcerers' is advice on how to integrate a sorcerer into the campaign without loosing flavor. Something perhaps like 'a group of preservers have bonded so closely with the magical energies running through themselves that they have learned to cast spells without spellbooks. Many may call themselves psions to allay suspicion, but they are arcane casters and not psionic.'
Does that violate the flavor of DS? Does that rape the setting of integrity? Does that hurt the campaign?
To compare it to OA, take a look at the 'other races' section of the Races chapter....there are the PHB races, laid out fully, with the instructions for infusing them into an OA campaign. They don't say 'they are not allowed, use only our races!' they say 'they don't really match the flavor...but here's how to do it if you want to.'
Similarly, the 'banned classes' doesn't exactly ban the classes, and even provides some reasoning and advice. Heck, the 'campaigning' chapter illustrates an elf and dwarf samurai. And there it also lists alternate names for PHB weapons so that they didn't have to stat out that many new weapons (hint!

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Also, some of the DS rules remove niches that people would want to fill...so the Bard is removed....who sings in the taverns or tells stories around the campfire? Who's the DS 'jack of all trades, master of none'? Or why doesn't Dark Sun have one of those types of characters? And what should players who like those types of characters do instead? Can I not use a new weapon or new spell or new monster because that would destroy the flavor of the setting?
And I do love the work they've done. But I gave my critique and my reasoning for it. I still think it would be a lot more helpful to include at least a blurb on 'including banned ideas without violating the setting' rather than just saying 'OMG WTF, you want Bilbo, LOL u LAMER!'
Instead, tell me how I can perhaps play a Bilbo-like character that IS appropriate for the setting (a savage halfling that someone has domesticated?), or at least why Bilbo isn't allowed.
