I read just now in this interesting article:
that there are plans to add new columns to the AID tables. From Matthew Templeton:
The AAVSO Science Team also had a brainstorming session earlier this week to make some changes to the AAVSO International Database, and one of the results is that we'll be adding some new fields to our data tables including columns for a reference (to indicate if the observation was taken from a published paper), and also a column for a digitizer's initials. Keeping track of the digitizer (in the same way that we tag each observation with an observer code) will allow us to keep track of how the data are entered and (importantly) to give credit to the valuable work that our digitizers are doing. Most of these changes will be transparent to AAVSO observers and to people using our data, although those who download data will now know the origins of digitized data as well as have identifying information for the people who digitized it.
No doubt, VStar, Zapper and other software could make use of these additional columns when showing the details of observations.