That doesn't get what the original poster is asking for. They want custom profile fields below the avatar.
Here's a link for a gender mod:
https://vborg.vbsupport.ru/showthread.php?t=117973
As far as the others, I'm not sure. But you would have to go to AdminCP > Styles & Templates > Search in Templates > find the postbit_legacy template
Then find:
Code:
<if condition="$post['joindate']"><div>$vbphrase[join_date]: $post[joindate]</div></if>
Below that add something like:
Code:
<!-- Member id: -->
<div>Member #: $post[userid]</div>
<!-- /Member id: -->
That would obviously show the member's id number but something similar could be done for their chosen style preference and usergroup. What the variable is for those, I don't know.