I completely and viciously disagree with everything the original post said about magic. That was a long-winded, rambling rant about Dungeons and Dragons with no relevance to Dwarf Fortress whatsoever.
And yet some of your sentiments mirror mine. Funny how that works.
Re-read the post. Specifically, "Magic absolutely should not make the game look like this," and, "These simply aren't traditions worth keeping. Smart people are already valuable enough in Dwarf Fortress, and they're only going to become more valuable as new versions come out... They don't need to be validated any further through patently broken 'traditional' game mechanics, and I don't care how awesome an army of wizards with a mastery of the devilish art of 'Power Word Fuck You' would be..." While I disagree with you on the point of power and scope, that little list at the end should indicate that we feel the same about at least a few things regarding magic-users. (Rarity being one of them. When the extraordinary becomes ordinary, 'magic' it is not.)
At what point in this entire thread did it appear to you that I was endorsing the regressive trends of niche oriented class supremacy and so-called 'balance' that plague fantasy themed games to this day? I'd say it was probably somewhere in the middle of my original post, where it appears you may have stopped reading because you reached a premature conclusion regarding its message. My complaint was that in most games, especially high fantasy themed video games, STR characters are made to be totally reliant on INT and DEX characters because they are
explicitly designed to be ineffective in most situations. (Often the reverse is true only when dealing with things that can't be expediently nuked, in which case the STR character becomes a convenient diversion.) That combined with the other broader considerations to be made regarding commonplace wizards ("Magic should not represent a significant industry.") means that in short, the game should shy away from the four-class party mechanic.
Also, like it or not that rambling rant of mine applies to much more than Dungeons and Dragons; it applies to trends affecting the entire fantasy genre that date back just as far as and were in their infancy popularized by Dungeons and Dragons. Trends that I feel the game should absolutely avoid. Not only do they compromise innovation in game mechanics and any notion of real party balance, they're founded in part on ideals, imagery, and biases that are fundamentally
wrong. ("The warrior should be ineffective because he's dumb and slow," instead of, "The wizard should be better because he's a one in a million supernatural freak.")
Looking at things from your viewpoint, if a wizard in his tower happens to be
one bad motherfucker, he shouldn't be a common adventurer at all. All other things remaining true, if magic actually happens to be a very, very effective means of getting things done, I would think that a wizard in that setting would be regarded as a high ranking advisory figure or leader in his domain of choice, not another 'unit' in the fortress. (Contrast with my thoughts that the wizard should not be godly but instead provide varied services that are advantageous but not game-breaking to the average dwarf, but I admit there's much wiggle room here given the setting and multiple ways that magic could potentially work. On top of that, I recall Toady stating that said multiple ways of working might coexist in the same world. Maybe the wizard is just a seer that advises the king or a humble custodian of magic seals that keep evil creatures away, or on the other extreme, a mortal demigod that spends his days fending off superstitious assassins and lending his services to the kingdoms for an immodest fee.) Regardless as to whether he's weak or strong, his powers should not be designed simply so he conveniently fits into a party of four.
The real and final point is that the party of four mechanic sucks dicks and exists in no small part as a means to allow nerds to circle-jerk with one another while the one guy that doesn't have superpowers gets the shit kicked out of him. That point of view is compatible with low magic and high magic alike.