I'm Cary, the administrator and curator of Fairfax Underground. There are ~60 words and phrases that can't be used on Fairfax Underground due to constant spam and abuse. If you received the "your message might be spam" message you must have tried to include one of these "forbidden" phrases.
If you feel that message was in error and your content should have been considered "spammy" please email me the content of your post at email@example.com
and I will certainly review the reason for your blockage.
This thread will be moved to Off-Topic.