Basically, what the following image means is that:
1) You can't sell currency, even if that currency comes with a rank.
2) You can't sell unbans or reduced ban time.
Invaded does both of these things, which allows Mojang to take the server down at any point.

(See TeunMC's post for the rest of the EULA underneath this snippet)
1) You can't sell currency, even if that currency comes with a rank.
2) You can't sell unbans or reduced ban time.
Invaded does both of these things, which allows Mojang to take the server down at any point.

(See TeunMC's post for the rest of the EULA underneath this snippet)