Share your insights or perspective on the financial matter presented in the input.

Is this reply promising a money order and cashier check a scam?
It's a scam. The cashier's check will be forged. Craigslist has a warning about it here (item #3). What kind of payment do you think is not fakable? Or at least not   likely to be used in scams? When on craigslist - deal only locally and in person. You can ask to see the person's ID if you're being paid by check When being paid by check, how can seeing his/her ID help? In case the   check isn't cashable, I can find that person by keeping record of   his/her ID?  If you're paid by check, the payers details should be printed on the check. By checking the ID you can verify that the details match (name/address), so you can find the payer later. Of course the ID can be faked too, but there's so much you can do to protect yourself. You'll get better protection (including verified escrow service) by selling on eBay. Is being paid by cash the safest way currently,   although cash can be faked too, but it is the least common thing that   is faked currently? Do you recommend to first deposit the cash into a   bank (so that let the bank verify if the cash is faked), before   delivering the good?  For Craigslist, use cash and meet locally. That rules out most scams as a seller. What payment methods do you think are relatively safe currently?   Then getting checks must be the least favorite way of being paid. Do   you think cash is better than money order or cashier order?  You should only accept cash. If it is a large transaction, you can meet them at your bank, have them get cash, and you receive the cash from the bank. Back to the quoted scam, how will they later manipulate me? Are they interested in   my stuffs on moving sale, or in my money? They will probably "accidentally" overpay you and ask for a refund of some portion of the overpayment. In that case you will be out the entire amount that you send back to them and possibly some fees from your bank for cashing a bad check.