@MediaLusa
As Far as i know, many forums put Filesonic as allowed filehosting that don't need mirror link for your post. They count Filesonic as Major Filehosting. So i think you can find easily many boards that allowed Filesonic as hosting link via Google.
FYI all my posting in many forums only use Filesonic link, no mirrors.
I think only limited or less forums that don't allowed their members to post with Filesonic Link ( Which i believe is very wrong decision :P )
Some forums that not allowed Filesonic i've found :
- pornbb.org
-
http://www.wkdporn.com/forum/announcements/9-rules-guidelines-read-now.html read point no.16