Incentives for using the invite link

The prize for joining with the invite link should be for both sides, so there will be an incentive for those using the link; otherwise, why would they join with the link when they can join without it.
It could be an extra one week of premium for joining with the invite link.
(edit: I'd personally suggest one week of prem. For both the inviter and the invited person)

This is a great idea! Makes it actually worth it but I also feel like instead of just gaining by the SP the recruited player is earning, there should be proto coins implemented somehow.