I noticed a NY trend long ago, mostly pioneered by the GSXR crowd...buy a bike used, say for $3K...immediately, within the hour relist it on CL for $4k.
Trolling for a "sucker" costs them nothing, and if "flipped" a windfall profit if successful. A ton of unsold, grossly overpriced GSXR's clogged CL in the 90's, early 2000's.
Overall effect? It undeniably triggered artificially inflated used bike market prices. And mind you, these were not necessarily pristine, "late model, destined to become classics"....largely the slammed, stretched, fugly paint/graphics, chrome everything crowd...but had effected the whole market nonetheless.
At a point in the 90's, early 2000's ...all used, CL GSXR's were grossly overpriced (around here at least) as a result of this brainless practice.
The unrealistic $10k or $17k F3 will remain unsold. I'd venture to say the owner doesn't really WANT to sell it...but if the price is right......basically its the same old trend as above.
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**Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba.... Hunter S. Thompson**