There should be a feature to allow you to anonymously tell someone to go for STI testing to allow people who have recently tested positive for something to alert others they hooked up with that they need to get treated as well.

If the feature is abused to harass others, this can be detected by identifying individuals who send these alerts with abnormal frequency to people they haven't had a reciprocal conversation with in the past or whose initial conversation was too recent and they couldn't possibly have had enough time to hook up with them and get tested. This should prevent the majority of bad actors.

I think it would be a useful feature that makes communicating sti testing results a lot easier and helps our community reduce the spread of these infections.