bindnode is also implemented via reflection, it has more features (such as using custom Go types), and I believe it supports all the features that these fluent reflect APIs provide.

We should probably deprecate the fluent reflect APIs (n.b. just the "reflect" family, not all of the fluent package) in favor of bindnode, and remove them a couple of releases later.

Before doing any of this, we could be nice and search across PL for users of these APIs, and submit PRs to move them to bindnode.

When we deprecate, we can then also close #212.

cc @warpfork @rvagg