I've been with CO for a very long time (my OP card has the Eastern Airlines logo).. and been elite for much of it.
I just don't feel that my PE status is worse than it was 3-4 years ago. Upgrades are a little harder, but I blame that on there being more elites than ever.
So, could you please list (in order) what you feel are substantial reasons you are upset at CO? What has changed in the last 3 years that you don't like? (ELR before OLCI to me doesn't count because I think its just lining up with UA because E+ is here to stay.)