Alright, this might be a long post.
It wouldn't have worked. I'm very interested in the new Realms. I wouldn't be in that one. The simple fact that Drizzt saved someone in a novel published 10 years ago is still important to the setting today is what is daunting to people like me.
Drizzt has never been important in my Realms. It's important if YOU choose it to be. You don't have to set your game in the Silver Marches, but if you do, there's a nice regional sourcebook that explains what you need to set your game there.
I LIKE stories about gods and upheavals and I have no problem with them being in the novels. I have loved all the FR novels I've read(which is a good 20 or so). I have problems with the fact that every corner of the world and every small NPC is detailed somewhere(either in one supplement or another or in novels). I don't like the idea of trying to run the PCs through an adventure set in (insert name of town here) and realizing that I'm an idiot because I didn't read novel 4 of series X so I didn't know that the mayor of the town is a 12th level wizard who regularly protects the town from danger. Which, of course, OBVIOUSLY I should know since that character also shows up in 3 other novels and his stats are in gaming supplement XYZ.
Which is something I agree with, in a round about way. I like the novels, but prefer them to be small scale and constructive, rather then large RSE's and destructive. Secondly, a good campaign setting book would give you an overview of the area, which would show you that the mayor of that town is a 12th level wizard who protects the town from danger. If you don't read the Campaign Setting Book, what are you doing running the setting? Now, that is an argument that can be made when they routinely change large chunks of the setting in novels, those big ones with upheavals. For instance a lot in Cormyr changed after the Cormyr trilogy, but other then the FRCS, we've not had a lot about the new situation there.
It's why I wanted WOTC to release a document every year showing what changes have been made in the setting, or at least put something I think it's important that in a setting with a Metaplot, this happens, in order to keep people up to date with changes in the setting easily, if they so desire.
I have a problem with the fact that despite the fact that I've read about 20 FR novels and played in a 2 FR games that lasted about a year each that I can still sit down with the average FR fan and be told hundreds of things I had no idea about.
You don't like learning new things about a setting? That's one of the things that attracted me to it. Layer upon layer of history gives the appearance of a living, breathing world. Now, if the stuff you learnt happened to be vitally important things to the running of the setting, then I'd agree. But again, the FRCS should tell you those vitally important things.
Well, as Rich Baker says up there, if 'rabid' FR fans are pushing the setting so much by word of mouth, they aren't seeing the numbers from it. Plus, as said above by someone else, I've seen 'rabid' FR fans scare off new people who asked about the setting just as much if not more often than they helped promote the setting.
The people I asked for help when I started in the Realms were nothing if not friendly. Perhaps the others have had a bad experience, but that's not the fault of the setting.
I'm not sure creating new lore for a setting is good. It just adds to the "weight" of the setting and the barrier to entrance. Ideally for me, a setting would have the minimum lore required to be interesting and invoke people's imaginations but not enough that it takes more more than a day or 2 to read through it and understand how the setting works.
Then just stick to the Campaign Setting Book. You can make the same argument against the Eberron Sourcebooks, if you want. Reading the FRCS gives you a good amount of lore so that you can know the setting and be able to run it, and certainly doesn't take more then a few days to read through it.
WOTC could have addressed some of the issues with the Realms, both real and perceived, with soft changes, rather then pressing the reset button on the Realms. It makes me sad, but hey, it means I can save some money come August!