Harry Potter author J.K. Rowling condemned three activists who protested outside her house and posted to Twitter pictures with her address visible, NBC News reports.

The protesters went to Rowling’s house on the night before Transgender Day of Remembrance, which honors the memory of trans people killed due to transphobic violence.

Rowling has been criticized for her views on trans people. Last year, she published an essay that suggested those who support trans rights want to “open the doors of bathrooms and changing rooms to any man who believes or feels he’s a woman,” and in a tweet, mocked the writers of an opinion piece for using the phrase “people who menstruate” instead of “women.”

In a Twitter thread, Rowling slammed the activists, writing, “I have to assume that[they] thought doxxing me would intimidate me out of speaking up for women’s sex-based rights. They should have reflected on the fact that I’ve now received so many death threats I could paper the house with them, and I haven’t stopped speaking out. Perhaps—and I’m just throwing this out there—the best way to prove your movement isn’t a threat to women, is to stop stalking, harassing and threatening us.”

Some Twitter users pointed out that the locations of Rowling’s homes have never been secret. Journalist Sarah Manvis tweeted, “Why is JK Rowling acting as though her house in Edinburgh isn’t a major tourist destination and that her house in Aberfeldy doesn’t have a Wikipedia page? I really am asking people to think about that—when this has been true for YEARS, you have to wonder: then why right now?”

Michael Schaub is a Texas-based journalist and regular contributor to NPR.