Is this a scam? SCAM ALERT!!!

[Big Bri]

The scam goes both ways, i posted a few items on Craigs List last night My first time selling on Graigs List) and this morning i have 13 replies. starting at 2:34 then 2:35, 2:35,2:36,and so on. all had diff. email addresses. some what to "buy" and send check. some want to send me info on "jobs" . Of the 13 replies i got only one was good. . . and he wanted to low ball me. These people sure make it hard for us to do honest work. (selling or buying goods)