With our new feature you can show your self created profile fields on the members list in the forum!
To activate the new feature, you have to go to admin -> users -> profile settings and create an own profile field (premium feature), or use one you already have created. After creating the field is shown in the list "extended user profiles" and you have to click at "show at members list".
After this, return to the forum - the new field(s) will be shown in the list of members.