The story of tumblr is really not about free speech suppression. They had a mix of explicit and non-explicit content, and had to choose one to decide what kind of advertisers to pursue. They chose non-explicit and it didn't work.
From the ads I got on Tumblr, it felt like one of the things they were trying to do was build the leftist millennial equivalent of Glenn Beck's email lists or whatever. I'm not sure how well that would mesh with a porn ban.
(I'm surprised there aren't any companies pursuing this! I thought Gab was going to, but it looks like they monetized with pro subscriptions [instead?].)
The story of tumblr is really not about free speech suppression. They had a mix of explicit and non-explicit content, and had to choose one to decide what kind of advertisers to pursue.
Given the events of the past several years, I highly doubt the people with the ad dollars are innocent of free speech suppression. EDIT: Specifically, the people asking for YouTube suppression through "advertising" concerns were tied in with the people coordinating hit pieces against YouTube content.
Disney saying "don't put my brand next to porn" isn't speech suppression. Happy to consider your opinion, though I'm not so curious as to watch a 24 video to learn about it.