...not really, but as far as I know, I was the first HF person to use them over a hammock & I quietly promoted their use since the beginning of HF.
Actually, the reason I was using them was because I had ordered a "Ray Way" tarp Tent just before discovering the hammock for backpacking.
It came with instructions to sew in tarp pull outs (thanks Ray). With the help of a seamstress friend I put together the "Tent Tarp" but had not yet added the netting.
When I discovered the hammock I just used the new tarp I had & found that the pull outs were a great addition.
They add roominess & keep the tarp off you when the wind blows
Sorry for the shameless plug