http://www.gamesas.com/index.php?/topic/1194787-the-joys-of-no-more-spell-crafting/
I had not heard of there being no spell crafting and can neither confirm or deny that it has been left out of skyrim. However assuming that it has been taken out then allow me to list why that might be a good thing (I'm a mage so magic is important to me.)
1. Each spell will then be unique and have a useful purpose.
Each premade spell become unique, thats remark must be done because custom spell was all designed with useful purpose in mind and was unique by spell effects combination while unique FX visuals was achievable by recreating such spell in CS with new script effect thats add nice visuals at last and uniques ways of using spell in best.
2. No more cluttered spell book (i'm sure y'all can't forget that).
Well actually I cant remember such problem in morrowind since I have Spell Delete button to forget such problem, ridiculous thats devs forget add such function in Oblivion UI, anyway after I drop vanilla Oblivion after and of MQ and start modding my Oblivion installation first Spell Delete mod become available for me.
3. Your enemies spells will no longer be much less effective than your own.
Well I'm not powerlevel when play games I just limit for self certain exploitable combination until there is no come any mods thats fix such exploits, for example just few mods add such depth to game when you will take in account many factors and dont rush into combat and think about tactic first, for example
Audacious Magery
http://www.tesnexus.com/downloads/file.php?id=25844
Thats add concesqunes to spells jut like in true RPG
Supreme Magicka Update
http://www.tesnexus.com/downloads/file.php?id=12466
What balance and improve magic as well return axed spells from game
With level scaling overhauls enemies become interesting and challenging instead of just meat sponges like in vanilla, so if such problem as to powerful spells in compare with NPC was in game thats was definitely problem of flawed vanilla.
4. It'll probably make spells grow stronger as you grow stronger transforming lesser res to minor res to greater res...ect as you grow in that skill.
Well spell leveling and charging was available in Modoblivion also
Chargeable Spells
http://www.tesnexus.com/downloads/file.php?id=27746
Thats is not exclusive feature of Skyrim, there even was way dynamically on fly change properties like target for spell and way to be casted on target as well as duration, range, all of this depend on skills and charged magicka and have consequences like overcharge.
Wouldn't you agree that this would be a much better way of having magic in the game, also note that spell crafting is not necessary for enchanting.
I would say thats having unique premade spells and dynamic their usage is great way to improve all premade magic but it no exclude spellmaking at all, even more I'd like have access to mechanic of such unique spells, at last in CK, as best there can be high level perk in enchanting for achieving such unique spellmaking so thats will be similar to Epic spell creation what avaible only for high level charterers what devote his life for studding magic so you must have certain skill levels in magical schools to make spells effects from such schools available for spell making as the same way as it need for enchanting to know and have ability to uses such spell effect before we can enchant something with such effect.
Thats was before in TES we need service of skilled masters for spellmaking or have access to arcane knowledges written in old books as well there was many spell thats have author names between premade spells like Baronoff's Bloody Icicle or Aryon's Blight Cure so spellmaking was definitely not for novices and more like for experienced magic users, novices use already discovered spells which thy learn, now when Mage Guild is out thats will hard to learn spells in such way, more likely we need search for old arcane tomes or receive them as rewards from quests, but if you are experienced in certain schools you can use spell effects from known schools with knowledge of enchanting for creating spell scroll what then can be uses for custom spell memorization or be sold so others can also try to receive advantages from such scroll, so scrolls will have variety of effects but crumble to dust after usage.
I think enchanting must not relay on sigil stones like enchanting they was really unbalanced in Oblivion since allow enchant in easy way very powerful items, much better if there will be also return of soul bond effects with advantages and disadvantages from Daggerfall such soul gems can work as toned down sigil stones and have positive effects but also can have negative side effects if soul bods was used as well at item break ghost of creature will be free and will attack closest target.