He was asked about this in a podcast. Episode 148 of Making Sense. The relevant discussion starts at 56:30 and runs for 15 minutes. Unfortunately the episode is

He was asked about this in a podcast. Episode 148 of Making Sense. The relevant discussion starts at 56:30 and runs for 15 minutes. Unfortunately the episode is not freely available. Dorsey talks about the 'public interest' of retaining Trump's rule-breaking tweets, how people can add their opinions, how it's expected that our leaders be 'extremely expressive', how it's a 'direct line to the people', how we can 'have a conversation about it'. I consider his response to be extremely weak sauce. All he's doing is giving excuses for his failure to consistently enforce Twitter's rules. It's difficult to avoid your conclusion that it's motivated by traffic.