Craigslist=Thunder dome. People make up and play by there own rules. Sometimes you win, sometimes you lose. No point in complaining or claiming the "moral" high ground.
Just wait another 15mins and something else comes along, like the midnight blue Sports Tourer frame w. fork, headset, stem, post, saddle, dérailleurs & 2 sets of shifters I picked up today for $80. Sometimes thing work out in your favor on CL.