holybins

So I've had this game for a while, and I'm wondering if you can actually figure these puzzles out by looking at the different types of pieces and going "oh, that makes sense that piece X here will support weight better here!"?  It seems like sometimes this game totally defies logic...or maybe I'm just not "engineer minded" enough?

If anyone has found patterns/logic in this game that can actually be deciphered, it'd be great to hear your techniques and tips!

How about being able to update submissions?  Besides things popping up while you're waiting for yours to get approved, I've had some times when I realized I typed something in wrong, but I couldn't do anything about (this example is with an image caption)...