Note that many people seem to prefer e.g. Skype calls over text chats because (to these people) voice chat requires less energy than writing, and feels like just having a normal conversation and thus effortless, whereas writing is something that requires actually thinking about what you say and thus feels much more laborious.

This would explain why I have been contacted by a number of people such as journalists interested in talking or interviewing me and proposing use of Skype, only to never reply when I say I don't use Skype and we can just chat on IRC.