Hey @Driviz, thanks for posting 
This line in the code sets the # of messages artificially so that the demonstration of sending messages is capped when users try it out themselves https://github.com/SolaceSamples/solace-samples-nodejs/blob/master/src/basic-samples/ConfirmedPublish.js#L34
If you show me your code I can take a look if you’ve modified things beyond what you’ve linked.