Isn't almost every coin on the above infographic using per kB fees? How is that not "directly proportional to space used on ledger"?
Also, the stupid meme about proof of work being some massive waste of energy is stupid. It's more akin to converting excess energy to stored value (bitcoin) rather than letting it burn off as waste heat.
They still can not to understand that without fees market, low-capacity coins (any decentralized crypto atm) will be vulnerable to a ddos attack. Byteball fess = tx size is not advantage, is a vulnerability that other coins don't have. There is two problem, too cheap to attack when cap is low and too expensive to use if cap too high. Byteball is literally a step backward
If you can wright a spam script, you can shut down Byteball only for $35-70 per day of a ddos. This coin is a total crap, from any point of view