Thank you for your reply.
Is phpbb_location what is used in the profile now? If it is, will creating a field with that name in Users and Groups > Custom profile fields
overwrite what is already been entered my members? If it's not, will the uses that have entered location information already then have that displayed twice?
I understand that I can create a field and require it for registration, but how would I also require it for posting and create a useable error message for those that haven't entered that information?
You comment about people making stuff up is valid, although it's not one that really concerns me too much. My forum (https://antiqueradios.com/forums
) is mostly a few hundred active members that are pretty friendly. Location is required for posting in an ad section, and that's enforced by moderators. Site wide would be similar, city/state or zip code for US; city/country for elsewhere. "The Pacific Northwest" "The Great State of Ohio" "Over the Rainbow" type addresses would be disallowed when moderators spotted them. It's more of a community thing than anything else.