I wish there was an option to put perks on the marketplace or sell them. I still have a load of perks from Passing the Baton event which I don't intend to use so an option to sell these would be nice.

No I don't see it happening some people could easily make money off of it and the coding would be to difficult plus it would mess with the currcencer that is taken place right now so credits wouldn't be as effective and other things etc. I see what your trying to go for but I just don't see how it would really work out in my opinion.