Disclaimer: Haven't sold anything second hand other than to friends and family before.
As a techie, i usually upgrade my tech fairly regularly but I've generally been able to pass it down or sell it on to people i know.
I have a 3070 which i no longer need and after asking around to friends, family and colleagues, I'm looking to sell it online. The idea of putting it up for sale online is a bit daunting as I've heard a few horror stories of legit sellers having dodgy buyers retracting online payments. Pre-covid, I'd consider a cash on delivery or even cash on installation (while present) scenario, depending what the buyer preferred. Now, not sure how to give the buyer confidence that they are getting an as advertised item and as the seller, I'm not going to get ripped off after the purchase.
Any advice with solid computer hardware communities (preferably Melbourne inner north or online), personal stories (successful or otherwise), recommedations or guides to selling online would be greatly appreciated.
Update: The card has been sold and it was due to this post. I just want to say thanks to this community and to everyone who contributed their advice.