Work from home craigslist ad, how do I know if it's is a scam?

Here's the ad: Seeking experience ebay sellers to list hot selling items from the comfort of your home, while earning a great commission. Fast learners &self-starters ONLY...we provide all info & handle all shipping...all you have todo is list the item and answer periodic questions from potential buyers with... show more Here's the ad:

Seeking experience ebay sellers to list hot selling items from the comfort of your home, while earning a great commission. Fast learners &self-starters ONLY...we provide all info & handle all shipping...all you have todo is list the item and answer periodic questions from potential buyers with our assistance. MUST have a ebay & paypal account in good standing...limited spots available. Please be ready to start and follow instructions right away.

Provide your ebay username and how long you have been a seller w/ ebay in your response, otherwise you will NOT be considered.

GOOD LUCK!
Location: WORK-FROM-HOME
Compensation: $20 PER SALE ON MOST ITEMS + EBAY FEES
Principals only. Recruiters, please don't contact this job poster.
Please, no phone calls about this job!
Please do not contact job poster about other services, products or commercial interests.
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