Hacker News Reader

>It's always helpful to check how old a user is and his karma.

It's fine to consider it as an extra signal but many people do not realize that reddit accounts can be gamed by marketers for stealth advertising:

https://www.google.com/search?q=sell+old+reddit+accounts+to+...

This is not that helpful. We marketers have aged accounts to post from. Reddit is highly manipulated but in a fashion that looks like genuine curiosity and being helpful.

A lot of marketers buy accounts with decent karma.