They wanted to but an item from CL plus add 30 extra dollars. They wanted to pay by cashier check. I have read that if someone cashed a cashier check they could then take money out of your account only take cash on CL.

Got a text from this number. They wanted to buy something I was selling on craigslist, using a cashiers check, plus pay an extra $30.

Email via Craigslist. They wanted to pay by check and wait for it to clear before pick up fridge. They were putting $50 on top of the price for me to hold it. Would not explain why they could not pay by cash.

Most people do not understand the difference between the funds being made available when a check is deposited, and the check actually clearing.

Craigslist, Kiiji, AutoTrader, Etc. Scam:

The scam works like this.  Communication is always by text or email for some made up reason such as they are deaf, they deployed and can't use their phone (then how did the text get out?), etc.  They think your item as described is perfect.  They might ask a few questions about it, and then will pay your asking price, sight unseen, because they are never around close by to come look at it (they use the stationed somewhere in the military a whole lot, or working overseas, or on an oil rig in the middle of the ocean, or simply fill in your own job here).  They will give you an extra $40 or $50 to hold it for them.  Then they tell you they will send a cashier’s check or money order for that amount plus extra for the “shipper”.  They ask you to wire that extra money by untraceable means such as Western Union or Moneygram.  The check or money order turns out to be bogus and you end up out the money you sent plus the bank fees.  Also, if the check is big enough you may end up being charged criminally.  Take the check and the envelope it came in to the post office and have them forward it to the postal inspectors.