As far as I can tell, that is the firm policy for posting in the live sound forums, but is not explicitly stated in the masthead for these forums.
The use of real names has been the standard practice on the live sound BB for years and has helped reduce drive-by ad hominum attacks and people making career damaging fools of themselves publicly (most times).
Using aliases really does not prevent the community from figuring out who is saying what, if contentious or libelous enough.
They only clearly state the real names rule for the Live sound forums, so perhaps wait for confirmation of your interpretation of policy before leaving dodge. This software transition has left much to be desired in effective communication and reducing negative impact on members.
JR
PS: There may be some issue related to combining all forums under one umbrella but i won't make ASSumptions.