As we have synchronised maps where extent & scale can be linked between maps, please add the ability to link attribute tables.
It will be a bit more simple - just link two or more attribute table views to scroll at the same time.
I sometimes find I want to have a look at two or more datasets' contents where a difference between the datasets can be within context of other fields, a row's sequence in the table, etc.
An example is where you are emailed two datasets by two people from a client's office and field site.
Doing a few quick checks (if you are familiar with the data already) is sometimes all that is needed to know which one is more appropriate to use.
Linking the windows to scroll at the same time will make these quick checks more efficient.
This does not override any more advanced or 'better' processes.