Facebook noted on its blog post about the purge: “These networks increasingly use sensational political content – regardless of its political slant – to build an audience and drive traffic to their websites, earning money for every visitor to the site. And like the politically motivated activity we’ve seen, the ‘news’ stories or opinions these accounts and Pages share are often indistinguishable from legitimate political debate. This is why it’s so important we look at these actors’ behavior – such as whether they’re using fake accounts or repeatedly posting spam – rather than their content when deciding which of these accounts, Pages or Groups to remove.” Facebook went on to say that many of the pages used fake accounts to make their posts appear more popular than they were, or were actually ad farms. But some owners of these pages have insisted that they don’t fall under the description that Facebook listed. Sites with conservative, liberal, and Libertarian leanings have been removed.
A simple chat (slack style) it's enough. Just having the possibility to send messages either single user or team (#channel). But please don't forgive to give an useful appeal to mobile app (worst error of competitors is, have a good app but totally no mobile friendly!) i would expect to have a similar whatsapp or slack app for messaging within the slack mobile app!