The rancor between de Blasio and Moskowitz has at least some roots in substantive education policy disagreements.
I say “attempts” because no substantive discussions were permitted by Col. James Pohl, the judge.
Now, blog posts can be substantive, and I think I've written plenty of wonky blog posts about tax policy in particular.
late 15c., "standing by itself," from Old French substantif, from Late Latin substantivum, neuter of Latin substantivus "of substance or being," from substantia (see substance). The grammatical term (late 14c.) was introduced by the French to denote the noun in contradistinction to the adjective, from Latin nomen substantivum "name or word of substance."