So most people here know that you can reset your perks after completing Dragonborn, so I invested a load of perks on crafting skills such as smithing(to craft gear for my followers) and enchanting(my character is a wizard). Using the perk reset thing you're able to max out your crafting skills, get every perk and craft the most powerful gear in the game, then you can simply reset your perks again by removing the crafting perks, so you can use a load of other skills, which in my case is Two Handed. Basically my character became a wizard with nearly every perk from every school of magic and also a two handed warrior, pretty much invincible.

Is it an exploit or is it how the perk reset thing is supposed to be used?