How slick! The WordPress Micropub server supports experimental properties so you can add
&post-status=draft to your IFTTT webhook-based recipes for Micropub PESOS syndication. This is useful in cases where you can get most of the data fidelity you’d like to have, but still may want to go back and modify things before publishing them.
Next I’ll have to try out
&visibility=private which should work as well.