Forum and Permissions Administration
The settings on the site were inadvertently changed last week and all forum's permissions will be updated.
Per policy, unregistered users cannot use the forums and newly registered users have limited permissions until they've submitted a small number of posts.
The permissions also determine what bots can do an see such as Google, Bing and Baidu. These settings too need a reset.
If you have any issues accessing the site; i.e. you believe you cannot see; create or answer any posts please let me know as soon as possible.