You can now send out posts to just your followers who have yet to buy a certain product. This should help you create new customers out of your followers.
It looks like so:

And if you're looking for an excuse to use this feature, #GumroadDay on Wednesday is a great way to try it out!
1. Create a discount code
2. Send it out to your followers
For the whole day of April 7th (Eastern time), you'll keep 100% of the sales.
Happy selling!
Best,
Sahil and the Gumroad team