Blocking a community for a protest is irresponsible and undemocratic.
NSFWification
Using a feature that is explicitly baked into the platform is irresponsible and will harm people who chose to click/tap on NSFW content clearly marked as such, and probably voted for to appear in the subreddit children.
What a nightmare this whole thing is turning out to be. I mean, imagine being the CEO right now. You want to seem strong, you don't want to back down, but every day the chaos seems to get crazier.
And the funny thing is, he deserves every bit of the shitstorm he brewed. He's traded his shovel for an industrial sized tunnel boring machine to dig Reddit's grave, as well as his own.