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The “Total by User” card is part of the more sophisticated Table Cards. It allows displaying information about comments aggregated by certain users.

Because users on a site can be considered unique based on their email address and/or their IP address – this card has a corresponding filter in the top-right corner:
- Group by Email
- Group by IP
With those filters, you can try to identify different patterns in the behavior of your commenters:
- users who have submitted a lot of comments from the same IP but with different email addresses – pretending to be unique users
- users who travel a lot – same email but different IP addresses
- users who change their names but still use the same email address – same email but different names (all the names will be listed under the email):

When data is grouped by the IP addresses, you will see all the names that users used while posting comments from the same IP:
