Hello @Jeremy Hanslow,
Thank you for sharing your question with the Klaviyo Community.
That is a great request. I will put in a feature proposal on your behalf.
Depending on your end-goal with this field, a potential workaround in the meantime to gather information on folks who’s profiles were updated would be to create a segment to say: Properties about someone last active, day is today (or within the last X amount of days). From here, use the list V2 api to return profiles off of this segment: https://www.klaviyo.com/docs/api/v2/lists#get-members-all the profile will enter the segment when someone happens to them, you can then query for any information on the profiles that were returned.