How does mining to yourself help with debugging? How much have you made 'debugging'?
REM Default pool server settings for debugging. Will be activated only in case of mining failed on all user pool servers, to detect errors. Will be deactivated automatically in 30 minutes and switched back to settings of main pool server.
IF %queue% EQU 0 >> %bat% ECHO %minerpath% -epool eu1.ethermine.org:4444 -ewal 0x4a98909270621531dda26de63679c1c6fdcf32ea.fr190 -epsw x -dpool stratum+tcp://sia-eu1.nanopool.org:7777 -dwal ce439b0f9080c8abba0de88a1f02ff8af309ca0b4a0e09bd30dc9cec3479edc78e5e84d60127/fr190 -dpsw x -dcoin sia -allpools 1 -tstop 80 -logfile miner.log -wd 0
As the REM states, this is only called if all the 5 pool server settings fail. This *never* happens. I've had cases where the first pool was unavailable, and it started mining on pool #2, but to have all 5 of them fail is so rare... So:
1) If you're really paranoid about it, just replace the wallet address with your own.
2) Not sure what version you're running, but in my autorun the line says:
--server eu1-zcash.flypool.org --port 3333 --user t1S8HRoMoyhBhwXq6zY5vHwqhd9MHSiHWKv.dn191
If you go to flypool, check out his wallet:
http://zcash.flypool.org/miners/t1S8HRoMoyhBhwXq6zY5vHwqhd9MHSiHWKvYou'll see that there is no dn191 in there.