I honestly think this is gonna scare guys like ingénieur and Z Ndule from uploading. 

Really ? The few videos of Papy Tex that were posted on his channel didn't even had alot of views.  Also Papy Tex himself posted a few of Igwejunior videos on his own channel 1 year ago. Must be somebody else. It could be one of those many Werrason DVD of the 2006-2007 era, because I remember some little youtube-channel being closed because of uploading DVD's of the 2006-07 era. Or one of those Academia videos. Remember how Ingenieur deleted twice the video of Academia performing at Sfinx-festival, because of Ricardo threatening him in the comments to take his channel down. Uploading Martin Mapangu's Benedikta videos could also be dangerous. Remember how many parts of the Fula Ngenge (Kin-Paris) VHS uploaded on Seben Total's channel got deleted. Later on Ingenieur uploaded the same VHS with the same result. In the video you could see Papa Wemba making a pre-record of the song Maria in Sec Bidens' house, Papa Wemba jogging and Bendoson & Pompom Miyake hyping him and the album, the clips of Recours and Couci Couca, Nouvelle Ecriture performing at RTNC in Kinshasa and the Fioti Fioti's dancing on the seben of the newly recruited Thierry Mogratana.

I honestly think this is gonna scare guys like ingénieur and Z Ndule from uploading.

This problem needs to be solved. Because we already lost much channels and rare archives. Isn't there a possibility of them together and create a website where they can put all those videos there without youtube, in order to save those videos permanently ?

But the video of Academia “Face a Face” must return. I never passed a week without watching that video.

Being scared by account closure is pointless, because apart from the closure there are no other sanctions. The videos that one uploads should be archived on the computer, and once Youtube deletes them, the user can open a new channel and mass upload them again. I have done it in the past, someone reported my channel or Youtube flagged it, it was closed, I opened a new one, uploaded everything back, and it works even today.

Regarding the site, there can be something done, but not the way you expect. I will send you a private message to describe.

By the way, as I mentioned, the best way to make sure the videos don't disappear is to download everything you watch and like. And keep it on your computer for a possible future reupload.