Deliberate use of fallacy

[Esquilax]

You need to tailor your argument to the context you're in. If you're aware of the fallacy and are well stocked with non-fallacious arguments in favor of the same conclusion, but won't get through to whoever you're talking to without the fallacy, I'd feel safe in using it. Just make sure you're on solid non-fallacious ground too, before you dig yourself in too deep.

If your fallacies are revealed by a more worthy opponent, wouldn't this lead to a counter-fallacy -- that the fallacies you've used should invalidate the point you were supporting with them?

Which is the point that you can bust out all those non-fallacious arguments I talked about before.