First off, I'd like to say that I am greatly disappointed at this news. I too have been watching TAS videos for quite a while, but after seeing this, I had to register and post my thoughts.
Some of you may or may not know me, but I am Kimimaru4000 on YouTube. Even as an expert video game player, I have always been astonished at the level of precision displayed in TASs. Some of them have even helped me find new tricks in many games. Often when I finish playing a new game, I look on TASVideos to see how some of the games are completed.
I have even tried making a TAS. It wasn't a big one; it was just a small level in a game. It took me 15 minutes to complete, and even then it wasn't perfect. Imagine making one for a longer game; it would take months, maybe years, to finish it. The creators of these videos put in unbelievable time and effort to entertain the public, and they get nothing in return. To delete this site would not only hurt those who love watching these videos, but it would also discourage others from getting near this hobby.
So what if it's not possible to replicate a TAS on a console? I certainly can't do a speedrun on a console and then replicate it exactly on an emulator, can I? Just as there are imperfections in my skills, there are also imperfections in the emulators. But my imperfections don't stop me from creating speedruns, so why would emulator imperfections stop you from creating TASs? It doesn't make much sense to me. The same can even be said for video games: they have glitches, but that doesn't hinder their ability to entertain the players.
You stated yourselves that TASs were made purely for entertainment. If that's the case, then why should the technicalities matter? Enjoyment is enjoyment, whichever way you look at it. To completely destroy a community as well as a source of entertainment is something I simply cannot accept. And I was looking forward to TASs of certain games too...
If the site has to go down, then let it be. However, I will say this to all the authors and contributors of the TASs put onto this site: Your work will not go unacknowledged. Of all the videos I saw, plenty of moments were memorable, and I won't ever forget these videos when playing my favorite games or making speedruns, and I'm sure others won't either.
That is all I have to say. Let's just hope that the future is bright for TASVideos.
EDIT: Darn, you guys got me good. Happy April Fools Day!