Don't be afraid guys , if you want to get more information about cryptocurrency you can visit forum cryto ( Bitcointalk , Altcoinstalk , Crytotalk , etc )
Platform video streaming it's not just YouTube.
they seem to have admitted their failure
it was something with the algorithm update that went wrong , too many of this happens lately
and yeah Youtube is the last source of information in regards to crypto 
but it is a huge platform to overlook if you want to promote something related to bitcoin and to see your work of a couple of years undone is bad
Youtube said they would reinstate the channels , by the way