People complaining that their wierd min/max hybrids are overpowered aren't really playing the game right. Here's some examples ...
A melee warrior would invest himself in his armor/weapons and the only crafting profession that would make sense is Blacksmithing. Think like a warrior, live like a warrior and you won't be using things like enchanting and alchemy to furthor augment your gear to ridiculous levels.
If you're a mage you focus on your spell schools and enchanting. Your spell damage doesn't scale as well as a melee weapon but your stun-lock perks, summons and severe magicka cost reduction make up for it.
Finally we have the stealthy theif who can front-load the most damage of anyone but doesn't have the defensive and restorative capabilities of a warrior or mage. You create poisons and sneak around, but you don't make sense as a smith or enchanter.
Now this is a completely open game where you can mix and match whatever you want to varying degrees of overpowered or unviable, but what I just described is where the balance is. Break that balance at your own peril.
While I agree with the notion that people need to stop complaining about "breaking the game" and losing the challenge when they go and power rush certain skills so that they become uber, who's to say that a melee warrior WOULDN'T invest in Enchanting or Alchemy?
The entire purpose of Elder Scrolls is to break out of those D&D archetypes of "warrior", "mage", and "thief", which are rather boring in their own right, but when combined to create different and unique builds, is amazing.
I for one do play a warrior who invests in Enchanting. My warrior is a dual wielding tank, who is a master of certain arcane arts, as well as Enchanting. It's a character build, it is who he is, it is what he would do.
However, I don't have a problem with Enchanting being unbalanced, because I haven't power leveled Enchanting to the max. At level 33, my Enchanting Skill is at 68 I believe. I've leveled Enchanting (and all of my skills, for that matter) naturally, only using them in time when my character would actually use them, not spamming a bunch of iron daggers from Smithing and Enchanting them just to grind my skills. Instead, I use Smithing when I want a new weapon or piece of armor, and I Enchant when I get a new item and learn it's enchantment, and want to put a new enchantment on a new item.
I do believe that much of the unbalance comes from user error, but telling someone that a warrior wouldn't invest in Alchemy is 100% wrong and flies in the face of everything that Elder Scrolls stands for.