I have several reports set up and found recently that if I need to change a column name, the reports don't automatically see that I changed the column name and are now blank because they're looking for the old column name. It seems like this must be currently by design, so I'd like to request that Reports use column IDs instead and then display the current column name so that changinging column names won't break reports in the future. This change would be entirely transparent to the user. I would like to change several column names, but currently won't so that I don't have to go back and check all reports to see which ones don't work anymore. I can't even begin to imagine the complications with this in a large organization with hundreds of reports.