From a person named Joshua.  Asking about my posted xbox one on craigslist.org and said he'll boost my asking price by $50 bucks and that he'll send a check for the amount if I give him my name, address, and email address.  Sure enough a check comes in, for $2200.

Take the check AND envelope to the post office & request it be given to the postal inspectors.

You know it is a scam.

Asking to buy something I posted on craigslist, but his name was Michael this time. Like previous poster, said he would tack on an extra $50 for taking the post down immediately and asked for my full name and address. Obvious scam, didn't respond further.

Michael responded to a post on Craigslist. Here's what it said:

" I am OK with ur Price, pls consider this sold to me and I 'll add Extra $50 to ur price if you can take the Post down and consider sold to me.. I 'll need ur full nam and Address to mail out a Bank Certified Check it's the only means I can make the payment, I 'll make arrangement for the Piclup after Check is received and Cashed at ur Bank..Send me ur full name and Address for payment..Michael"
I guess if it sounds to good to be true, it probably is. Very frustrating!

Just had the exact same thing happen to me. Frustrating to say the least!