Fees used to have two functions: Prevent spam and pay delegates for their services. With BTS delegates now inflate their salary into existence to ensure they can get a competetive pay, meaning that fees only really exist for spam prevention now.
I think it could be interesting if we experimented with using our fees as a way of making our bitassets more attractive to accept and support. If big payment processors could somehow get a special master key from which they could derive other private keys with a special attribute: Payments sent to the addresses of these private keys will have their fees going to the master key instead of being burned.
This would give the big processors a very concrete value proposition that shows them why they want to support our blockchain, and why they should help us make sure our blockchain gets big, because it will be able to offer them something no one else can, even if we're currently tiny.
The price we will pay for this will be essentially nothing. If money goes to payment processors it means they're able to spend those funds on marketing their services (and thus marketing our blockchain) more aggressively, and provide better service to their customers (which are also our customers). Once we have absorbed the entire crypto market we might elect to remove these special keys again since they will no longer give us a competetive advantage over other blockchains, or we can keep them if we determine they are still profitable to have since they empower trade.
This is just a random suggestion, I would love to hear input.