Hmmm, Hamfist adds the word "... technically ...". As if this might be one of those "spitting on sidewalks" types rules/laws. Or one where you'd be hard-pressed to find anyone who really cares or knows, etc....
And then deep-digger-dan has a video that someone's posted, where he "does it all the time".
Hence ask yourself: Let's just assume, for sake of argument, that it is a) very forbidden, and b) you are in deep-doo-doo if you did it, and c) there's authorities looking for scofflaws to bust their chops at every turn !
Then why doesn't some cop or ranger or whatever bust the guy on that posted video clip ? CERTAINLY they could get a warrant for the video-hosting service (youtube or whatever) to reveal the poster's name and address? In the same way that if someone posted a video of them murdering someone, it would only be a matter of time before the identity of the person who posted would be tracked down, and the murderer arrested.
So either the person who posted the video is very un-wise (and cruising for trouble, etc...), or it's a non-issue ?