|Release time frame|
Thank you for your idea. There are a couple ways to handle this currently.
In the Activity section of the idea details page, you will see a votes section. Clicking the Votes text will show you the list of portal users who have voted (including their email address.)
You can build a report showing the details of each vote. To do this you will need to use Ideas as your primary record type and add the Idea votes record as a secondary record. The idea votes table will provide details about each portal user who voted on a particular idea.