[bisq-network/proposals] Remove maker fee tx and taker fee tx (#265)

[Oscar Guindzberg]

In general, I like the idea.

I like the idea of traders not having to prepare/assign funds exclusively to 1 trade.
It would be good to have a mechanism to mark offers as not available if user btc balance is not enough to do the trade. That process could run every N seconds or after each trade action (create offer, take offer, offer taken, etc)

About spam protection:
- I like the idea of a general PoW requirement for p2p messages
- The PoW difficulty increase is a bit more controversial: 1) There might be a problem in "As all nodes see roughly the same number of offers, the difficulty can be derived by that metric"... on PoW blockchains difficulty adjustments are based on all nodes seeing the exact same blockchain. But maybe we don't need a consensus on which offers are accepted/rejected. 2) An attacker with an ASIC or a bunch of GPUs could create lots of offers and make the difficulty to be increased a lot... then nobody with a standard netbook would be able to broadcast an offer.

 


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