Facebook Messenger to Place Autoplaying Ads in Your Private Conversations Traditional ads were introduced to the platform last year and according to Recode, autoplaying videos will appear in Messenger on Monday. In their report, head of Messenger’s ad business, Stefanos Loukakos, will be watching to see how users react. Stefanos Loukakos Stefanos Loukakos Messenger is the third most popular social network by monthly users. Messenger has a monthly mobile audience reach of almost 106 million.