I started soon to make the Realms my own. Partially because back then I had not as much official material as I have these days (and because the areas I was interested in didn't get that much details), but also because some things just didn't fit my views.
The novels I was first reading and sometimes using too - as adventure ideas - but the more RSEs they brought, the less I liked them. I also didn't like some "holes" left even by the best authors - Cunningham's rather obvious ignoring of the ability to raise dead in her novels, for example - which showed they didn't really know the game. Together it made me stop reading the novels.
A lot of the events that changed from 2E to 3E I disagreed with. A number of the plotlines though became central to my adventures and campaigns. So, I started to pick and choose even more, combining older material with newer material, replacing official fluff with self-made or other home brew material.
Over time, I had my own FR; populated with my own countries, and my own NPCs, and my own campaign's history, shaped by players.
FR lost me when they expected me to jump 100 years forward and discard all my own realms.