This week, J.K. Rowling revealed that there was at least one Jewish student at Hogwarts.

Which led to fans asking the writer other important questions, such as this one from Clara Oswiin, who wanted to know if there were LGBT students as well.
@jk_rowling it's safe to assume that Hogwarts had a variety of people and I like to think it's a safe place for LGBT students
This was Rowling's perfect response. "But of course."
.@claraoswiin But of course.
<3
Turns out the awesome poster Rowling tweeted was actually created by The Youth Project in Halifax, Nova Scotia, for the region's annual Hal-Con!