The first and most obvious one is, there's nothing remotely wrong with being transgender! If I were cis and I came out saying, "Oh my God, no! I'm not transgender! No, no, no!" that's just reinforcing this stigma about being transgender that costs so many lives. I think transgender people are probably the most persecuted people on the planet, and I don't think it's helpful for cisgendered activists to inadvertently reinforce this.
Secondly, anyone familiar with the subject knows there are many, many shades to being transgender! There are intersex people, there are non-binary people, there are deep stealth people. Ultimately, being transgender is a private, very serious medical issue that needs to be addressed as early in life as possible. I don't think it's helpful to anyone involved to treat it like a litmus test, where a person must come out publicly.
Thirdly, for anyone that's publicly transgender - I've had friends that are out tell me about the pain it causes in it coloring everything that they do. I have a friend that's a well known software engineer. She's has people writing her all the time about how inspiring she is. She appreciates the sentiment, but she says it brings her back to the most painful period of her life. In becomes an adjective in front of that person's name - coloring everything they do when the goal was to just feel like their true self.
The only winning move here is not to play.
