Is it worth preserving all social media content from MySpace, Facebook et al though? I see the argument for blogs because people usually put more thought into t

Is it worth preserving all social media content from MySpace, Facebook et al though? I see the argument for blogs because people usually put more thought into the articles and they are more likely to be timeless. However, an endless stream of breakfast photos or drunken lashing out may well be better off deleted. Imo, the danger lies when the "serious" conversation/publishing moves to ephemeral platforms.