Do pets currently take 50% of your exp?

[strawman]

I searched Dolalin's post history and found that he referred to this post from 2002 stating that, prior to the change being discussed, pets took 50% XP if they did 50%+ damage: http://everquest.allakhazam.com/story.html?story=960

Originally Posted by Rich Waters

In the old scheme, if a pet did more than half of the damage to a monster, it took half the experience reward. In the new scheme, pets take zero experience unless no player does damage.

Unless there is more, earlier information I didn't find, this is rather compelling proof that the 50% XP penalty was classic.