SEO Replace all instances of "Specified" words with specified words+word=link

I'm not sure if that title was clear, something I have been looking for through forum software is actually quite similar to the bad word filter, which as most people know, when a user posts a bad word, the admin is a preset GOOD word, or whatever, kind of word, that will automatically replace that bad word, preventing profanity in the posts of users. a Very nice feature.

What would be extremely beneficial and possibly an easy mod,
the ability to replace "specified" words, with "the word used" which contains a link.

for example if

bill joe posts
I sure love vbulletin!!!

it would be posted something like this

I sure love vbulletin <-vbulletin, would contain a link, to vbulletin.com


lets say there is a video section and someone makes a post say

i sure love videos!

with this mod, the word videos, could contain a link, to the videos section of the website which to forum is hosted on..

there is some other thing iv seen that is similar but when you drag the mose over it a popup box comes up with an ad,,, thats lame... dont do that..

so year thats my suggestion, i think it would help a lot of seo with back links, and easy access to areas that are being discussed in the forum....

what do you all think??