i took this sissue to the vbulletin guys, who wrote this forum software, and know it better than anyone, and this was their response:
To be able to tell which is a link to an object or href can be a pain too.
You could match :
So all youtube into links for instance, that looks like it would help a lot ?
Though if most of the them are mixed up, it will be a real pain.
therefore the issue of making links "active" is not going to be possible, as stated previously.
the matter is now closed, so i'll lock this thread.