It's not obvious why nothing is being logged when using the log helper for the first time, when developing a new application. The documentation here makes it seem like it just works, when in fact it doesn't unless you explicitly set a low enough log level.

The only reference I could find to this issue (after a while trying to figure out if it was me doing something wrong) was the bug reports of people that also couldn't understand why nothing was being logged, and a very vague reference to log levels in this page. The problem with this reference is that it mentions the various log levels, and that it defaults to logging only error mode, but the log helper section doesn't mention that it is outputting messages with the INFO level. Also, if I was a new developer I probably wouldn't be very familiar with the standard error level hierarchy, so it's something that should also be better documented.

BTW, I only stumbled upon the reference to log levels by chance, since I would never have guessed that there was something in the Handlebars configuration that was preventing me from seeing log messages, or that I would need to read something unrelated to "Helpers" to get a helper working as intended.