1. Paint to clean plate
2. Create a clean plate using masks, paint, multiple frames, or whatever works
3. Selective blurs
4.Tracked masks that reveal another portion of the same image
5. Tracking a still of a clean background over the wire/rig
6. Tracking a slightly repositioned version of the same frame
7. Hand painting
8. Any or all of the above or other techniques at any time for any frame.
Wire and rig removals don't involve "a technique." They involve every technique in the book and then some.
I saw mentioned wire removal demo as well as couple of others and I realized, that there is not "one size fits all" approach. I guess, I was hoping, that with today's tracking technology there would be a more streamlined approach this technique in Smoke.
I think should investigate Moca a bit more. This app does have some very sophisticated tracking technology, that may help.
So, at the end, I guess, I should be thankful, that it's not that easy to do. Otherwise then everyone would be doing it:-)