Bitshares have a long way to go to get competence comparing with Paypal, please do not raise the fee first, but raise the competence first.
Let's assume that 2% is the maximum fee people are willing to tolerate when they transfer money.
The above assumption gives us these conclusions:
- With the current flat transfer fee of 30 BTS, we only support transfers above $5 (~1,500 BTS) and 
effectively send people away if they want to transfer anything less. 
- With the percentage-based solution, we will support transfers above $1 (~300 BTS). So we will cover a very important segment between $1 and $5.
Any major payment system on this planet (including Bitcoin, PayPal, debit cards, bank transfers) supports payments between $1 and $5. 
But we don't. We seem to know better.
We want to compete as a payment system, but are happy to ignore the most important customer segment.
In the real world such a product has no chance to survive.
No business (certainly not mine) is going to build a payment system around the current flat fee structure. 
This needs to change, it cannot stay this way unless we want to 
kill the referral program or 
give up being a payment system.
Percentage-based fee structure is the only solution capable to reconcile those two.Guys, I'm trying to fix a major flaw.
Why does nobody care?