If Facebook is building a WeChat clone, it could face big problems

GUEST: Facebook’s Messenger client runs on mobile devices, has built-in chatbots, and could support native ads. Sound familiar? Maybe the monolith of social media is building a WeChat clone after all.
There’s been a steady proliferation of mobile users in places like Japan and Singapore, and the apps (most notably WeChat) tend to be a constant companion. Users stay within the app to communicate, make purchases, make phone calls, and hold video chats. Messenger could su