It's true that some people don't add any socials and don't have any info in their HN description.

But sometimes they modified the string they pasted from meet.hn and it broke the parsing, causing their socials not to be displayed on meet.hn.

That's why I would suggest to check their profile by clicking on their username.

Note: I'm not parsing socials across the entire HN user description because some people want to keep some data outside of meet.hn. By having a clear start/stop of meet.hn data, it allows me to parse only socials users actually want to display on meet.hn.

I suspect some people don't want to publicly link their real identity (via socials) with their HN profile. For contact an email could work better.