To enable this setting on your for sale or appeal items, select the item and then check the "Show Purchasers Names"
You may be wondering why this is beneficial. Some examples of how you would use this feature would be a sign-up party. You can see other people who have purchased the for sale item. Which would make it all the more fun to attend.
You can see the purchasers under the "Purchases" tab on the app and the event website. Show purchasers name will only display 8 of the most recent purchases.
Once you have enabled this setting on an item you will be able to the names of the purchasers on the Purchases tab. This is how it displays on the event's website.