As a reminder, be sure to properly give content warnings and put sensitive subjects behind proper spoiler tags. It's for the mental health of not just your comrades, but yourself as well.
Here is a screenshot of where to find the spoiler button.
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They're fun and cute up until the point it goes from "look what hrt can do!" to "hrt will never do that for me". You're comparing years of change in an instant, often of the most conventionally attractive people, who pick the most flattering shots to share. It's not an overnight thing but seeing the side-by-side makes it seem so, and therefore unattainable.
They're a useful pre-transition resource, they very quickly lose that when you start comparing yourself with them