GLAAD said it contacted Facebook's public policy team and reached out to five fact-checking agencies, but the social network answered by pointing to a public ad policy page explaining why ads can be removed. In response, GLAAD posted an open letter asking Facebook to remove the ads, with support coming from 50 organizations, New York Governor Andrew Cuomo and Senator Elizabeth Warren. The advocacy group is buying ads on Facebook to promote the letter among the LGBTQ+ community.

We've asked Facebook for comment.

The ads are likely just attempts to spur lawsuits against Truvada's manufacturer, Gilead. However, there's a concern that they could do serious harm by discouraging the use of preventative drugs and spreading HIV. They also illustrate Facebook's mixed track record in supporting LGBTQ+ people. While Facebook has become more inclusive with changes to its real name policy and support for custom gender identities, it has also drawn fire for inadvertently blocking LGBTQ+ ads and claims that it's lax on removing homophobic material. Simply put, the ads questioning Truvada are eroding an already fragile sense of trust.