Sure, no problem. Signaling pathways can be thought of like cellular "circuits" and hormones can either activate them or inactivate them. They are intricate circuits that have receptor level interactions and downstream interactions that ultimately lead to cellular level DNA transcription.
Think of GH's anabolic pathways as being a highway. And each time you utilize the highway, you create potholes and take chunks out of the road making subsequent trips harder to take at full speed. Now, think of insulin as the construction workers who come in and repave the highway, ensuring it is smooth and ready for full speed transit.
Of course, you can take this highway with the potholes, but you'll not be going at full speed.
I think that folks who continue to spread that type of information really don't understand the physiology of growth hormone and may even just be repeating what they have heard others say. If told to do this, challenge the person to explain why they are making this recommendation...
Of course, if you are wanting to obtain the full lipolytic effects of GH, that is a different story.