Why some sub-forums did not attach at the outside likes other does?

[1016]

Such as there have 4 sub-forums from the Philosophy field, i wonder why its not putting to outside on the main forum attachment just likes other forum did...

 

[Evo]

Such as there have 4 sub-forums from the Philosophy field, i wonder why its not putting to outside on the main forum attachment just likes other forum did...

The sub forums in philosophy are not listed on the main page to reduce space.

 

[1016]

ok, i get it.