[lucasmullens]

I don't think it's that hard to not share Instagram posts to Facebook. Can't you just unlink your account?

[ClassyJacket]

Officially you can, but it doesn't respect it. It won't share the posts directly, but it'll still suggest you to your friends based on it.

[travisr]

Not that I could find. I remember trying to use an alternative email even, but it was my back up email on Facebook and it linked them automatically.

[stephenhuey]

If this is the case for you, maybe it only applies to newer Instagram accounts since I had mine long before the acquisition and my posts go to FB only by choice (and I almost never choose that anymore).