ORIGINAL: 1wrangler
Actually, flying within 5 knots of your stall speed (up high though) and making turns while doing so is part of the most basic flight training for full scale. It shows confidence and precise aircraft control. I have flown a cessna 150 at 40 knots, and made turns in winds aloft that are blowing at 30 knots. Did my airspeed drop to 10 knots causing the plane to stall and then enter a spin? No, absolutely not. Did my ground speed increase from 10 knots to 70 knots? Yes, and that is all.
I totally agree with the above, and I'd like to add a few more thoughts: In my opinion, the down wind turn can be dangerous, but not necessarily. The wind flows like water in a river. If you row your boat straight across the river, you will drift down stream, but still reach the other shore safely. The same thing happens with model airplanes: You will drift downwind. The problems arise when you try to fly at the same speed - relative to the ground - as when the wind is calm. If you compensate in order to make loops round and straight, and turn really hard to make the downwind turn before the plane drifts too far, you might stall. Let the airplane fly in the moving air, at a safe airspeed - not ground speed - and you will be fine.
The wind won't hurt you at all if you remember that you are flying in moving air. Wind gusts can knock your plane off course (or even turn it upside down), but that is another story.