[fees]: change estimatesmartfee default mode to economical

src/rpc/fees.cpp

@@ -36,7 +36,7 @@ static RPCHelpMan estimatesmartfee()
         "in BIP 141 (witness data is discounted).\n",
         {
             {"conf_target", RPCArg::Type::NUM, RPCArg::Optional::NO, "Confirmation target in blocks (1 - 1008)"},
-            {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"conservative"}, "The fee estimate mode.\n"
+            {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"economical"}, "The fee estimate mode.\n"
             "Whether to return a more conservative estimate which also satisfies\n"
             "a longer history. A conservative estimate potentially returns a\n"
             "higher feerate and is more likely to be sufficient for the desired\n"
@@ -71,13 +71,13 @@ static RPCHelpMan estimatesmartfee()
             CHECK_NONFATAL(mempool.m_opts.signals)->SyncWithValidationInterfaceQueue();
             unsigned int max_target = fee_estimator.HighestTargetTracked(FeeEstimateHorizon::LONG_HALFLIFE);
             unsigned int conf_target = ParseConfirmTarget(request.params[0], max_target);
-            bool conservative = true;
+            bool conservative = false;
             if (!request.params[1].isNull()) {
                 FeeEstimateMode fee_mode;
                 if (!FeeModeFromString(request.params[1].get_str(), fee_mode)) {
                     throw JSONRPCError(RPC_INVALID_PARAMETER, InvalidEstimateModeErrorMessage());
                 }
-                if (fee_mode == FeeEstimateMode::ECONOMICAL) conservative = false;
+                if (fee_mode == FeeEstimateMode::CONSERVATIVE) conservative = true;
             }
 
             UniValue result(UniValue::VOBJ);