i think posting on forums is quite dangerous
it certainly enables them to determine the threat you pose
i suggest posting on forums like http://www.godlikeproductions.com/ where you can post anonymously ie without registering.
i suggest you browse such forums at home or wherever but only post from a computer/phone which is not yours ie go to a cybercafe - while there do NOT login to any accounts eg email / Facebook etc where your détails are known
THAT MEANS YOU ONLY GO TO THE CYBERCAFE TO POST ANONYMOUSLY ON FORUMS WHERE YOU CAN POST ANONYMOUSLY and browse the i.net BUT DO NOT LOG IN TO ANY ACCOUNTS.
I WOULD SUGGEST YOU DO NOT TAKE YOUR CELL PHONE WITH YOU EITHER.