When you add a custom profile field and have it displayed on members list page as well. I've spotted while default profile fields displayed their are seen "inline", the custom one does not do it and uses two lines up when you minimize your browser to mobile viewing - even though the custom profile field can fit inliine on one line like others. Look at the Male gender custom profile field in image compared to rest of other default profile fields all being shown inline, and even longer than the custom one.