Unfortunately the majority dictates the medium. As for the second point, if I consider the information worthwile, I make a personal copy of the volatile medium

Unfortunately the majority dictates the medium. As for the second point, if I consider the information worthwile, I make a personal copy of the volatile medium (this means not just social media, but any web page - if it's not on your computer, you don't control it and it can disappear at any moment).