It only returns a subset of user data https://github.com/NodeBB/NodeBB/blob/master/src/posts/user.js#L24-L28
If you want to add more you can do so in a plugin, using the hook filter:posts.modifyUserInfo
Currently, I'm using the plugin (nodebb-plugin-adsense) for Google Adsense to show Ads on the forum.
However, it displays the Adsense on all the pages including Signup / Login which is against to the terms and conditions of the Google.
Is there any particular method to place or limit the Adsense on certain pages of the forum.