I am much used to SMF. That Forums software has a modification which places the Members' Age, Location, Gender and Join Date under the Member profile in every post. I find this a great convenience for both the Forums Staff and the Members.
I wish ElkArte too had such an add on.
You can do that with Custom Profile fields. Go to Admin > Core Features > Custom Profile Fields. You can create using type and location for the information. You can also set where it is edited.