Forum Moderators: open
While I see no specific problems caused by size, I can see several advantages to breaking up large directories into smaller ones.
expected by end of year:
Dir1: 10k files, 40meg
Dir2: 3k files, 16meg
Dir3: 3.5k files, 30meg
Dir4: 2.5k files, 24meg
Total: 19k files, 110meg
(i.e. a big site ;-)