I really don’t have an answer to this, but I just wanted to mention it, so we can think about it. The ranks in PVP are just a matter of how much playing time you are able or willing to devote to it, as we all know. But a side effect more or less is that you are dropping ranks overnight faster than you can climb them during the day. Last night I made an effort and got from around 10,500 to 9,500, only to discover that I dropped all the way to 11,750 after I woke up. This way I think I just can’t be bothered to play PVP anymore, except perhaps for the trophies for the guild.
Like I said, I have no idea how to solve this. Just some thought.