Punctuation in the quotes has been fixed. Because it's way easier to read in proper English than a massive run-on sentence. Changes are marked in red.
Would be nice, but may not be feasible.
If you build it right, it's not an issue.
I don't personally agree with this. It kind of goes against the main purpose of the game. Also, block crafting has been re-worked a couple of times already. Pretty sure the way the block upgrades work now is the way they will stay. It is pretty well balanced. You can however, mod the properties of the materials, blocks, recipes as you like.
This isn't Minecraft. You can mod the SI for this if you want though. Building massively spanning towers really doesn't support the survival aspect, or overall aesthetic of the game. It's pretty easy to mod if you want though. I've done this for a few castle builds.