People talk about the game becoming easy when you "abuse" smithing? How exactly does one do that? Are they talking about using potions? Getting it to 100? Leveling it to Dragonbone early on?
Compare ANY daedric freaking artifact bloody weapon to something you, with less than 10 hours of smithing in real game time, can make in 1 minute.
Gods make worse weapons than you -- and your weapons don't even NEED to be enchanted to be better than the weapons gods made!
Remember to wear store-bought fortify smithing gear when forging, and store-bought fortify smithing potions.
If you want to completely break the game, invest in enchantment level 100 and create your own fortify smithing gear with an fortify enchantment potion effect on you.
THEN if you want the remains of the game to never be found, invest in 100 alchemy, and make enchanting potions with enchanted gear, and use that potion to create better fortify alchemy gear, and use that enchanted fortify alchemy gear to make potions that fortify enchantment, and use that potion to make better fortify enchantment gear, and use that gear to make better fortify alchemy gear...
...
And then use the best possible fortify alchemy gear, and make some perfect fortify smithing and fortify enchantment potions.
Then, you make fortify smithing gear.
Then you smith the daedric weapon and armor using that gear and that fortify smithing potion.
...
Even now, you can do worse:
You can send Skyrim to oblivion:
Enchant your armor, with "elemental resistance" on one enchantment slot, and "increase weapon damage" on the other armor slots -- for up to 160% extra damage from your armor added to your weapon of choice.
For weapon, just enchant one with absorb health and chance to paralyze and another with fire and cold damage... or whatever.
You will now one-shot anything in the game.
It'll only take you 10 minutes with 100 enchantment, 100 alchemy and 100 smithing.
Leveling alchemy is the hardest. Then comes enchantment. Smithing is very easy.
Alchemy should not be able to make enchantment, alchemy or smithing potions.
Enchanters should not be able to make fortify alchemy or fortify smithing gear.
Smithing should not make better weapons than anything that can be found in the game, because that makes adventuring almost pointless, because you're the best smith in the world and nothing in any cave out there CAN be better.
NPCs should be able to enchant stuff FOR you. Extreme prices are in order, and have the player wait a week ingame. 10 000 gold for one proper high level enchantment?
The same for smithing; Give a level 100 NPC smith a deadric heart and ebony, and tell him what you want -- and he should be able to make it for, say 50 000 gold.