Runescape would have to OSRS gold give something to balance than it currently is. When they gave a boost, they would have to allow it to be significant enough to matter, but not so strong as to make leveling with no so horible that non paying people quit. While I understand and support fully the idea that people who cover for Runescape must have more say in how the runescape match is accepted than some f2p runescape participant that has not given a pound, dollar, rubel or whatever money they use, The f2p runescape players want content that they can enjoy without feeling the necessity to head over to the store to get membership.
Not that membership and mtx is poor, it's just the way it's moved about. As Purchasing Xp directly, There are some alternatives for. You could buy an amount of a denomination of bonus xp. You Could buy amounts of lamps, state 15 medium lamps for Cheap Rs gold 4 bucks. These numbers are only examples or placeholder amounts not suggestions.
You can buy a permanent item that gets charges while you ability or do combat and when it strikes a sensible threshold you'll be able to claim a solid chunk of xp according to your degree alongside a lamp, or silverhawk feathers as well as other skilling associated products. As it could be permanent, it might be sold for a good sum of money on the cash shop.
As PVP, it was murdered by Eoc for. Not that abilities and skills are awful for pvp, It's your ordinary runescape player would rather visit bdo, tera, Gw2 or other better ability established pvp games. Highscores are a meme as you said. They have zero relevence and to be able to get near highscores with mtx you would have to shell out tens of thousands of bucks for just ONE account.