Advice - Danger in trying to sell to a person with a sketchy payment history?

[shadowedyoshii.livejournal.com]

Hey there! Quick advice post.

Pretty much, I've had an old fursuit casually available for sale for a while. Someone contacts me expressing interest at my full asking price. We exchange a few notes back and forth establishing things, and they seem really interested. I was a little put off by how loosely they typed, per se, but some people are just really chatspeaky?

But, due to their profile saying they were 15(!), I Googled their handle a bit. I was able to find their Furbuy profile, with two people leaving negative feedback for nonpayment.

The thing is, they offered to pay via money order. I guess my question is, is there any real harm in assuming good faith and seeing if they mail me a money order? They can't really be charge-backed or anything, right? Were they wanting to pay with Paypal I would have already declined, I guess I'm just wondering if there's any potential harm other than wasted time in seeing if I actually receive payment. Thanks for any advice!