The forum has sections that are available only to ZennoLab customers:
Hidden section - discussion of opportunities to make money online, bypassing protection and blocking on various sites and many other automation tricks.
Private templates - free templates are placed here, which are better not to be shared.
To access the private parts of the forum, you need the "Client" status, which can be obtained by any user who has one of the licenses:
ZennoPoster
CapMonster
ZennoDroid
ZennoProxyChecker