Transaction fees: bug or feature?

[ceric35]

Hi,

I’m also wondering how a non fees blockchains can work.

@Konsta_Gogoljuk

In an ideal system, transaction fess should be zero. Why tax the main thing that system is meant for? All so, taxing would decrease the system activity, and make testing transactions very expensive.

In Bitcoin world, fees are not only used as reward to miners. Write access to distributed database should include a cost to prevent transactions spam.

If there is no cost to send transaction, an attacker can easily send billions of transaction into network with no cost at all, even maybe valid ones, resulting in huge blockchain if block are not limited in size over time.