I held and tilted the rotor rotating around a rod like on the photo below, the wind coming from back:
The wind speed was about 5 m/s.
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When I let go of the set, the rotor flew a few meters high for a few seconds downwind thanks to its lift.
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But when I held and tilted the rotor for a while, the wind pushed the rotor in its direction, the rod pivoting between my thumb and my index finger to become appreciably horizontal as on the photo below, said rotor thus losing its lift.
Yes (see just above).
A windsock or a bol kite are also pushed in wind direction, without providing lift.