I'm sure for some people that is the trend. For others, email is still doing just fine. Personally, I don't much like the kind of proprietary message board applications that trade off locking up your communications in someone else's system for using a prettier UI. Almost any individual online communication that I care about, whether personally or for business reasons, is done either via email or via some sort of self-hosted system that isn't trying to replace email. And speaking only for myself, I have had many email conversations catching up with old friends online while we can't meet in person because of the virus situation. YMMV, and presumably so will a few billion other people's. :-)