Where can I get the most ludicrous quotes and when did they decide they are the mediator for the rest of us ?
You can start by attending this Summer's district convention. There will be no shortage of material which lovingly informs you that Christ is not your mediator, and that no salvation is to be gained outside the organization. Just bring a sack lunch and a lot of antacids.
When the Watchtower organization tells people to "Follow the Christ", they are really telling them to follow his publishing company. For all intents and purposes, the Watchtower Society is mankind's mediator. It's a wonderful product when you think about it: no independent thinking required, you get to earn your own salvation through works, you can get your own teritory card, and best of all: the end is just around the corner!