Your average troll is no sullen slouchabout, and will not rest after but five posts. The troll is a pernicious creature, a clever beast of patience and frequently of no small intellect. Five posts is but a snack for such a one, a delicate aperitif before he gorges himself upon your vexing frustrations. Be wary, fellow bitcoineers - these restrictions will perhaps keep out the lazier specimens, but those most foul and determined trolls will not rest at a mere five post limit. It is only a low threshold before a wide open door.