I don't see spawn camping to much in FVK C&H, probably less then half the time unless that fleet mentioned earlier is there. I end up doing sometimes but not by choice, I usually check the scoreboard every now and then to see if there are leechers just sitting on the spawn and go there to kill them, sometimes other players decide to defend the leecher and we end up in a big battle at the spawn area. Some of these leechers actually try to fight back or resist sometimes so I know they don't like dying in pvp so thats why I do it. Don't defend AFKers/leechers sitting at the spawn if you don't want a battle to start there.
Everybody know AFKers are bad for what ever team they come on but it is still no excuse for the game to allow spawn camping at other's base to get easy kills. You can only curb that behavior if they change those turrets to heavy torruets that do allot of damage to nearby enemy.