Actress Alyssa Milano is credited with sparking the conversation with a tweet on Sunday afternoon.
Ms Milano was one of the earliest supporters of her Charmed co-star Rose McGowan's #WomenBoycottTwitter protest on Friday, after Ms McGowan was temporarily suspended from the social media site in the wake of the Harvey Weinstein scandal.
In another tweet that links to a blog post, Milano added: "While I am sickened and angered over the disturbing accusations of Weinstein's sexual predation and abuse of power, I'm happy - ecstatic even - that it has opened up a dialogue around the continued sexual harassment, objectification and degradation of women".
While the bravery of women and men who have spoken up is inspiring and their strength in naming their abusers is nothing short of powerful, it's also important to remember that those who are still coming to terms with their past experiences should be allowed to address it on their own terms. Singer Lady Gaga also tweeted the hashtag.
"I wish I could remember who I was before #MeToo", a woman named Rosey wrote.
"Just as I did after the #Trump tapes, I'm having flashbacks due to the Harvey Weinstein assault & rape allegations".
More than 40 women have come forward in the last two weeks, to say they were harassed or assaulted by the now-fired studio exec, with numerous women claiming they stayed quiet because they didn't expect anyone to believe them. One user wrote about the time she was held by a group of boys at school as they were trying to see "what her bra was stuffed with", which resulted in the boys getting no more "than a slap on the wrist", as she was told to learn to take a joke. "You've given me the courage to finally speak out and not be afraid".
Following the success of his message, Alyssa Milano was expected on the ground of the case, Weinstein. She said she was degraded, but eventually realized "the shame wasn't mine".