It's not like that reading came ex nihilo. It came because of what was actually written in the setting books and lore websites for the setting.
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Hussar read different books, different lore (from what I'm to understand, no wild sorcery, for one) so he came to a different conclusion about what DL expected from its heroes.
Again, I think you are focusing on a subordinate element of the situation. I'm pretty confident that [MENTION=22779]Hussar[/MENTION] could have read all the stuff you did and not have a different view. The issue between you is one of theme, not one of content.
part of this DM's schtick is that he's drawing a direct parallel between each of the current party and one of the original Heroes of the Lance. I'm pretty ignorant of the original stories, but it turns out my gnome wild mage fits the "Raistlin Majere" model of Hero
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the material I'm looking at shows explicitly that there are DL heroes who don't think the gods are hot shakes (Raistlin)
Hussar has clearly read the key Raistlin stories (the first two trilogies). But I strongly suspect that [MENTION=22779]Hussar[/MENTION] thinks of Raistlin as a villain, not a hero - that his turn to the black robes (ie evil) and his attempt to replace the gods as ruler of Krynn is not a heroic goal.
If the only magic was through the Tower of High Sorcery and there was never wild sorcery, I wouldn't be a wild sorcerer. If the Greygem didn't make the gnomes, I might not think of that as an important facet of the character. If every tinker gnome had to build a rube goldberg device, I might've done that! If the lore didn't explicitly allow for the kind of character I'm playing, I would be playing a different character!
I think this is missing the point.
Hussar has not said there are no mages outside the ToHS (there are renegade wizards) - he's said that ToHS is what is paradigmatic or distinctively authentic about DL. By making your character a gnome who is not a tinker you avoid exemplifying what is distinctive about DL gnomes. By being a non-ToHS wizard you avoid exemplifying what is distinctive about DL magic. And by opposing the gods you exemplify a trait of (what I think Hussar would take to be) a key villain (Raistlin), who only redeemed himself by abandoning his plan to oppose and destroy the gods.
This is not a difference of opinion about what DL
permits. It's a difference of opinion about what DL, at its core,
is.
Both of us can't be right about those points, if we're reading the same information. Upthread, [MENTION=22779]Hussar[/MENTION] mentioned that a lot of these elements of my character were from later revisions to DL lore, not from the original lore he was familiar with (maybe Raistlin was a character introduced after the original book series?). I've no reason to contradict him on that.
Raistlin is one of the most important characters in the first two trilogies. Hussar has read those books. He knows about Raistlin.
Your difference of opinion is one of interpretation/thematic reading, not of facts. The commentator on Tom Sawyer and I have both read the same Mark Twain book. We've both read the same story about Tom getting his friends to help him whitewash the fence. What we disagree about is what it means in thematic terms.