There is an article in the Washington Post about how they're not taking action, and quotes from activists about how they need to take action. Their general counsel had to answer questions from a journalist (on a weekend!) about whether they were taking action. That constitutes significant pressure.

Further, as the article helpfully mentions, they took action before. After you take action once, a failure to take action a second time stops being a principled "we never take action", and starts being, at least partially, a defence of the target. If you drop the Daily Stormer but not 8chan, you're saying, implicitly, that 8chan is not as bad as the Daily Stormer.

This may or may not be true, but it's absolutely not a discussion a company wants to have in the national media in the context of the aftermath of a mass shooting.

> By staying idle

Arguably that was never an option. Today, it's absolutely not an option.