[niam]

> which starts to defeat the claimed purpose of a Land Value Tax.

What do you think others claim the purpose of an LVT is?

> every LVT discussion eventually comes back to some inclusion of other factors to adjust the taxes or provide exemptions

This argument seems only to follow from a belief that carving exceptions out of policy here is either: inherently bad, lends to a slippery slope towards badness, or is fundamentally incompatible with the professed aims of an LVT (hence my asking).

I don't believe any of those are true, so this sounds to me an unfair indictment against the otherwise legitimate strategy of "keep what's good; change what's bad", which is practical and works for other policy all the time. While I'd scorn the complexity of our current tax code, I wouldn't do so on principle of exemptions being bad, but rather that we've made poor tradeoffs or struck a bad balance.