We currently don’t have a way to attach a sale condition to Patreon status. You can, however, make a coupon code and share that privately in a Patreon update. It would be possible for someone to share that coupon code, but you can request that they don’t, and end the sale/change the code if you feel like it’s getting distributed.
Viewing post in Rewards enhanced & claimable sales comments
maybe instead of having it able to give discounts ONLY to patreon instead some system that allows a 1 time useage coupon code to be sent to someones email then regardless of what platform you use you can just supply a mailing list (idk say in csv) and it will send a 1 time code to everyone on that mailing list then if you have patreon you just download your mailing list and use that to send out coupons if you have go fund me or some crowdsourcing page you can use that to send out coupons to people