That's some low effort spam, no wonder even Reddit's default spam filter caught it and that mod had to manually approve it. Back when I was helping mod on Reddit we used to see that sort of discord link spam nearly every day. Just spam/removed it & moved on.
The sad thing is that r/Piracy mod likely got scammed himself. Besides that mod who would really believe a scammer is going to send $800 via PayPal of all things? Most likely some sort of scam/hacked account, the payment will be reversed and that mod's PayPal account may get locked/banned in the process.
That's an understatement, PayPal will pretty much always side with the buyer no matter how ridiculous and outlandish their claim. I even had one "dispute" where the scammer changed the dispute reason which caused PayPal to ignore what I'd already submitted and close it in their favour by default as "no response". PayPal is very much pro-scammer, avoid if possible.
It's been a few years since I've had to deal with clients directly, I don't think I'll ever miss it.