I used the glowstone as a placeholder as mentioned above because that is exactly what it would look like if you were to make hanging lights with redstone poles. Currently, there's no good way to do it without making an ugly mess in your ceiling. These can be in plain sight and not be an eyesore and are more compact, perfect for tight places. I'm not near as advanced with redstone as some people here but if I can find a use for it then those people definitely can. As a beginner at redstone I found it difficult to implement that redstone torch, stone, redstone wire, stair step contraption pictured in the image. It would be much easier and more practical to just be able to place a few of one block type on top of each other and call it done.Quote from GreyWolfSC
Yes? One is fence posts with glowstone on the end and the other is a redstone circuit and redstone lamp. Glowstone doesn't need power. What other purpose would it serve other than to make pendant lamps? You didn't specify a use case for your idea in your original post.
I have no idea why you wouldn't want this as a feature as it saves time, resources, and space.
If they were to actually implement this feature you could still use your ugly stair-step redstone contraptions as you please.