Slippery slope that opens the door to others adding seemingly 'innocent' links without explaining them to the end users. I couldn't begin to compete the thousands of emails I got over the years about my little signature sign that confused people as to just what was being collected and why:
Once you open the door to this kind of behavior, it opens a can of worms that suggests calling other scripts which installing your mods are also acceptible.
Lesson learned on my signature, that it makes sense to you doesn't mean it won't freak out alot of others.