Merge pull request #1747 from MarnixCroes/coinjoin-fees

Coinjoin: update fees

docs/using-wasabi/CoinJoin.md

@@ -64,12 +64,16 @@ Notice that it is not yet possible to coinjoin from a hardware wallet, the keys
 
 ### Fees
 
-A 0.3% coordination fee will be taken from fresh coins bigger than 0.01 BTC.
-Coins less than or equal to 0.01 BTC don't pay coordination fees at all, according to the _PlebsDontPay_ threshold.
+The coinjoin coordinator sets its own fee policy for the coinjoin service provided.
 
-Remixing is free, as well as coinjoining coins 1 hop from a coinjoin, although, Bitcoin mining fees still do apply, as shown in [this table](/FAQ/FAQ-UseWasabi.md#what-are-the-fees-for-the-coinjoin).
-So if you send a coinjoined coin and receive a change output, you will not be charged the coordination fee for this change output.
-The recipient of the payment will not have to pay the coordination fee, as long as he is making coinjoins with the same coordinator.
+Although the coordinator cannot steal money from the coinjoin participants, it could set a high mining fee rate and/or a high coordination fee. 
+This would make the participants pay a lot (unnecessarily). 
+To prevent against such behavior the Wasabi client can configure the maximum mining fee rate and the maximum coordination fee it is willing to pay per round. 
+If one of these is higher than the set values, the client will not participate in the coinjoin.
+
+The default values are 0% coordination fee and maximum 150 sat/vByte mining fee rate.
+
+![Coinjoin Configurations](/SettingsCoinjoinConfigs.png "Coinjoin Configurations")
 
 ## WabiSabi protocol step-by-step