There are a lot of ways in which such a feature could be implemented, although I'm not sure which would be preferable to everyone.


Lanthanide
I explained why we felt the need to set it up, and in response you explained why something like YouTube would be better. I agreed, seeing as that's what we did before the SENtv idea and still do now, but that doesn't detract from why we felt the need to. Really the biggest thing was that we'd be able to edit the site's code to fit what we want and integrate SEN into it, rather than having no control over YouTube. Essentially we wanted to do what SC2Mapster and Curse ended up doing with SC2Replay (or whatever it was called).
Currently Working On: 

NudeRaider -- EUD actions, specifically. The conditions remained. Today we can even have actions again, but they're all virtualized/whitelisted (not sure on the actual technical implementation) so you can only use them for specific intended purposed, not arbitrary code injections.
NudeRaider -- I mean yes, maps - through EUDs - were theoretically able to do that as well, but that was patched quickly.
NudeRaider -- Symmetry
Symmetry -- I vaguely remember Voy doing some ACE back in the day, but I had no idea EUDs could do that kind of shit. I am very much catching up on the technology
NudeRaider -- Symmetry
Ultraviolet -- I don't think so. I think they shut that shit down after 1.16, maybe even earlier
Symmetry -- NudeRaider
DarkenedFantasies,
Moose