If BLM came to a Milo event, bought tickets, and politely listened to him speak, would you call that harassment or intimidation? I think the thing Green and Sarkeesian are trying to avoid saying is that these types of panels are very sparsely attended, and these guys wound up being most of the audience just because no one else cared to attend. They didn't need to attend early to take up the front three rows because no one else showed up. Also, my understanding is that the audience was split up into sections with aisles. They only took up the front 2 or 3 rows of one section.