This seems like a debug test that got accidently comitted, but I am not sure. When loading the mod on 1.12 the message Got IMC is printed into the console many times. You can find the exact line here

This might be helpful for debug in integration with a bit more information, so if kept I would at least make it debug instead of info. Sender of the IMC would also be helpful if kept.

I'm rewriting how IMC is done, see: 6854cc5