There's one big problem with Snap CEO Evan Spiegel's latest indictment of Facebook (SNAP, FB)

Snap CEO Evan Spiegel took a veiled shot at Facebook on his company's earnings call on Tuesday. When asked about the issue of smartphone addiction, Spiegel tried to distinguish between Snapchat and Facebook, noting that his company, unlike the latter, hasn't focused on encouraging users to "like" posts or follow other users. But Snap encourages users to keep coming back to its app in other ways — most notably through streaks. Snap CEO Evan Spiegel loves to take a dig at archrival...