Your point must ellude me then, unless by point you just mean you were being ironic, which wouldn't change my reply since it was a little tongue in cheek itself.
Just because there is porn on Twitter doesn't invalidate the fact it is the app for spreading ideas in public. The most popular people on Twitter post their thoughts and opinions, Instagram's most popular users are people who like showing off things visually. In many cases this is images of themselves.
I didn't miss your point then. You've unfairly summarized one app as a thirst trap in spite of it's myriad other users, while underplaying the role of porn on another. Twitter is an app for thought in the same way Instagram is an app for photography. They both have cohorts of cheap thrill users and users who are being more thoughtful.
