Ah, yes. Back in the day I'd seen quite a few 11m groundplanes [with full-length radials attached, mind] mounted in trees for stealth. When the Antron 99 and its ilk came along, concealment became that much easier [camo spray paint & zip ties, and you're good to go].
The question I have, is how can these radio reprobates afford all this...junk and the vehicles [read: trucks/SUVs] in which to mount it? I have my suspicions to a degree. It must be nice; some of us have bills to pay.