I disagree with your assessment of my argument. I believe that making multiclass, even paid multiclass, a thing is every bit as dangerous to the health of Lusternia as purchaseable demigod.
You could also make buying demigod for credits a possibility, and people would buy credits. Doesn't make it a good idea.
Unpopular opinion time!
I think multiclass is a TERRIBLE IDEA.
This requires almost no RP effort on the part of the person, and could possibly even kill off some already-struggling guilds. Why join the monk guild that has two …