Can byteball offer free transaction fee for a year or two? To increase adoption. Or maybe offer it indefinitely. It works for Iota and Nano.
I know fees are very low but as a marketing campaing it is powerful to say, it is fee free.
Why not!
I don't think it's possible, and the reason is spam.
To be quite honest, I don't understand how Iota and Nano will manage to avoid that kind of practice, but if it is a plausible solution, I see no reason why we could not discuss it here.