We think this is an excellent idea for driving activity to Gnosis Pay, and are pleased to support this proposal 
The substantial interest and attention the product has received to date has been great, but the available data suggests that volume per user (c. €311 per user per week) is likely still accounting for only a smaller proportion of the average user’s total activity. Likewise, the growth in users has been steady, but the numbers are still relatively small. We therefore expect there is significant room for growth in activity for Gnosis Pay from all angles from this initiative.
The implementation focusing on holding GNO tokens in the user’s Gnosis Pay Safe is a clever way to attract short term demand to GNO, and reward long term users and holders. The tier system is also well thought out, and we expect will encourage users to expand their existing holding to benefit from the next available tier. We also expect that this will be an interesting experiment to see how far the average spend per user per week increases. It would be helpful to track existing users through the incentive process, to separate out new user growth from increasing spend among existing users.