also, for complex societal reasons, lesbians just tend to like things where carabiners are used, such as bouldering. based on that, carabiners have then used by some to signal that they’re lesbian (i haven’t heard of anyone using it to signal availability, that seems like it would lead to confusion very easily). important to keep in mind that carabiners are still worn primarily for their function for most people, including lesbians (that’s how it caught on)