infact i should have mentioned that , many forums are already sort of "leeching" peoples text to sell as links using the above mentioned method , but they only do it to text not to links , so this is sort of a way of protecting your text by monetizing on keywords..
Infact for a better version next time ill just make it randomly take a word out and set it through your own search engine.. like it would randomly pick one word from every post and link it to
www.yoursite.com/?keyword=keyword helps with seo rank too.