If people want to start some sort of accompanying movement, it really needs to only be as simple as #ibelieveyou - those 3 words have incredible impact. Really nothing else needs to be said, when someone says #metoo or tells you for the first time, that they've been harrassed or assaulted or bullied.
ETA:
David Blaine accused of 2004 rape of model, reported last November (2016) but it's only hitting the news now, I guess?