I know you've stated that the permissions to unlock the cover photo feature will not be changed but I feel like the only way to accomplish these tasks is dependent on how long you've been on the forums, I'm suggesting that the trophy points required should be reduced as well as the post count.
If you've been around longer then others you deserve some kind of reward. The cover is a nice reward.
I understand that, but there's people who posted nothing, recieved no ratings and given no ratings and had registered their forum account in 2014, guess what? They already have the trophy points requirement. I'm currenty and the stage where the majority of high valued trophies I can acquire is dependent on how long you've been registered.
Well, that's nothing to get annoyed about. Wait a year or so and you will be able to have a cover photo yourself.