Ruth Wong writes: “Last October, I attended a Wikipedia editing party themed around homelessness. At this event, I realized that by contributing to Wikipedia, I could contribute to how history is written. One month in, someone noticed my edits. The other editor said that my sources were too biased. That’s fair: I dove into this topic and found that my original edit was incorrect. But the other editor also tried to delete my user page, claiming that I was using it for self-promotion, which was totally uncalled for.”