This is just a "nice to have" feature in my opinion. I'm not using it for anything, but it's a nice stat.
You can also claim that avatars are pointless and sign of social network so they should be removed, or changed to a generic avatar e.g. the site logo. You can also claim display names are pointless, so use only the default name without the ability to change it.
Bottom line: not being a social community does not mean all features and signs of social community are prohibited and banned. Stack Exchange is still a community, consisting of actual people. So some features might not have real value, but still nice to have.