The logging to output that Config options rpcuser and rpcpassword will soon be deprecated. was added ~8 years ago in #7044. However these options still continue to get new usage today, i.e lightningnetwork/lnd#8354 (comment), and it's easy to forget they are considered deprecated, given they aren't under the normal deprecation mechanism/there aren't more verbose warnings.

If we are going to deprecate these options, now seems like a good time to do so. We could start with updating all examples / docs in this repository, to remove any rpcuser/rpcpass usage.

If we aren't actually planning on ever deprecating/removing these options, we should probably update the logging output to remove the mentions of future deprecation.