If there are hundreds of people working on WhatsApp I wonder why it's so difficult for them to continue supporting Blackberry 10. So what if it's not popular, t

If there are hundreds of people working on WhatsApp I wonder why it's so difficult for them to continue supporting Blackberry 10. So what if it's not popular, they should aim for complete coverage of modern mobile OSes. Then again this is the same team that could not implement encryption without outside help.