Long time ago i have see a fake share, but a bad fakeshare have only 1 file or somfing like that.
if you say max sharesize is 50gb like bluray, if a user have a share at 100gb one file it is fake.
LIKE:
!fakesharesize 600mb
SHARE-> 100GB - FILES-> 1 = #do somfing#
SHARE-> 100GB - FILES-> 2 = #do nothing#
Some hubs have max share size too, like 600mb, if a user have only files whit 1gb+ #do somfing#
LIKE:
!fakesharesize 600mb
SHARE-> 100GB - FILES-> 100 = #do somfing#
SHARE-> 100GB - FILES-> 1000 = #do nothing#
If it is a mp3 hub, it can be 6mb, if a user have only files whit 1gb+ #do somfing#
LIKE:
!fakesharesize 6mb
SHARE-> 100GB - FILES-> 1000 = #do something#
SHARE-> 100GB - FILES-> 10000 = #do nothing#
if it is min 100gb mp3 the array can be nice

so it can be set lower files for every gb.
#do something# = KICK,WARN,DISCONNECT ETC.
it can be a array too:
100gb 100files
500gb 1000files
1tb 99999files