in polycount forum or other forum i surf, they does use BB code too. but they allow some extension (i don't know what it called) but i can say right now Facebook images is impossible to copy a clean direct img URL here. so posting any images host from FB is impossible.

anyway got thought of improve the image code to allow more image embed in post? (especially host from FB)

2nd thing is in some subforum, those users don't even bother to use spoiler tag to hide excessive image and cause some user having a slow loading time to load picture from a single replied post. can put a code auto spoiler bracket images from replied post?