The OP is building an app to help people meet, yet by their own admission have managed to attract one user. They asked a question about a common issue engineers face: onboarding and marketing. Your comment ignores nearly every shred of this substance. Instead you accuse them of "getting [users] killed"? Patently absurd. To cut them down at the knees in this way is counter productive at best.
In the greater context of American society, Urban Isolationism is a real problem. You can argue that it is a less urgent issue during covid, but the dangers remain all the same. I applaud the OP for trying to chip away at this problem. Crazy to think your comment is the HN-upvoted response to their efforts.
What a place this has become.