Posting that video here is inappropriate. But I do get your point, which is why I referred to cheaters in my initial post.

I don't disagree with you on this point. I really don't. But as I said in my initial post, there are other factors that we have to take into consideration before changing anything. If we were to changing it a little bit, what would be the chances of people saying we didn't change it enough?

I expect that Cataclysm has just been left behind with their old rating model. The system for Lordaeron is more recent. Do consider that Lordaeron is the newer realm, and the bulk of the content on the realm had been completely re-scripted.

It is the same case as it is for Icecrown. I can assure you of that. I'd honestly be surprised if the Cata or MoP realms were any better.

I'm aware of this. However, the issues I presented above doesn't exactly make adjusting this easy. I'm well aware there are issues with the PvP scene, and especially 3's. However, I also know that our team is unsure of what changes could be made to improve upon the situation. Currently, 3's is most widely used for wintrading, and lifting this restriction would only make it easier to do. So we have to ask ourselves if making a change like this, would it make things better or worse? It would make it better for the teams that already exist and play legitimately, sure. But those are also very few people. Would it bring in more players to 3's, and would they play legitimately? I don't believe the answer to that would be as positive as any of us (me, the staff, etc. and yourself as well) would like.

So what we need to figure out is how to approach this without improving the situation for people who use 3's for win-trading to get gear and titles and etc.
This rule has absolutly no influence on wintrading. And i repeat myself once again there is a function behind personal rating already that you cant just join a team and do 5gaems to get rewards but this 70% is just an overkill and implemented without any thoughts. If player want to change teammates they should be allowed to and not restricted by staff because its cute to stick with same team forever. and what about people who are 4-5 people in a team? With this rule you could also implement a rule for pve that you need to kill 80% bosses with this guild to be eligible for loot. So people dont jump and disband guilds to join better ones.

IF you play arenas yourself you would notice how this rule makes no sense.