I think Diabolos is regarded as a "Crafter/Crafting Server". Though there is a fair amount of endgame FC's that run the coils and sell runs. I think there are a lot of players with multiple top tier crafter classes. I know quite a few of them as well, and even I do some minor crafting, though I can't quite make sense in spending so much gil to meld any of my crafting classes personally (Materia prices have been jacked, imo, for a long time for all useful materia) there are a ton of crafters that are beyond that point and wearing the new artisan body (as well as the artisan apron).

I'm sure many of those players that do top tier crafting are also FCoB run sellers as well. I was told there was at least one player on our server who has accumulated 600something million gil, which I can't even begin to fathom personally. The most I've ever had at one time was a bit over 15 mil and I had considered that an accomplishment. ._.;;