To expand on why this is bullshit: Disney's terms of use state among other things that: "[...] you may not submit or upload User Generated Content that is defamatory, harassing, threatening, bigoted, hateful, violent, vulgar, obscene, pornographic, or otherwise offensive [...]"

So Disney is claiming that if I reply to their tweet and use the hashtag, and if my reply contains content that is ok according to Twitter's terms of use, but not ok according to Disney's terms of use, I am magically violating Disney's terms of use. Despite me not using an actual Disney service, despite them having zero control over my tweets, and despite me not accepting their terms of use in the first place.

Hell no.

I'm not saying you all should reply to that tweet with your best Chewbacca furry porn. But you totally should.