Because TOS is...human...and not some stiff politically correct joke like TNG. The men act like emasculated weeners and the women act like they're frigid...except for Deanna Troi and Beverly Crusher...and the uninhibited Lwaxana Troi ain't too shabby either.
There is nothing real about it. People are gonna take the TOS women anyday in their uniform skirts as opposed to TNG "women" in their unisex longjohns.
Well you get a pass from me for acknowledging the hotness of Lwaxana. However by starting this in the TNG forum you made it about attacking, wheras if you had started it in the TOS forum it would have been about the gloriousness that is TOS and not annoyed people.