If WhatsApp users want to switch en masse to a new platform, they have to manually reconstruct their chat groups and their contact lists, install an entire new

If WhatsApp users want to switch en masse to a new platform, they have to manually reconstruct their chat groups and their contact lists, install an entire new app, learn how to use the new app, work around any features that WhatsApp had which are now missing on their new platform, and probably a bunch of other stuff I'm forgetting. If IRC users want to switch to a new server, just use the /server command. Done. Maybe you have to re-register your nick or channel. But the client is the same, the interface is the same, everything stays the same.