That is generally good advice, however I would be far more comfortable dealing with a wholesaler on eBay than with an individual on Craigslist.
Using a handful of good practices, eBay can be a great place to get a great deal.
Here are a few guidelines that I've developed for myself over the years (started using ebay in 1997):
- Depending upon the item and the description, avoid "0" feedback sellers. If it is a one-off type of thing and the description explains a bit about the "why" of selling it, I'll more likely take a chance.
- The lower the total number of seller feedbacks, the higher their positive percentage needs to be. (eg. feedback=30, percentage=100%; feedback=32,000, percentage>= 95%)
- Avoid auctions where "stock" photos are used.
- Watch out for auctions with exorbitantly high shipping charges. That is often an indicator that the seller is playing a psychological game of having a lower closing bid but overall higher out-of-pocket cost to the buyer.
- Avoid auctions where the seller says "as-is" and claims they haven't actually tested the device. (Showing a working unit can dramatically improve the closing high bid so not showing it is a good indicator that the device is dead)
- Avoid auctions where there is little to no detail in the description. No, stock boilerplate info doesn't count.
- Don't become emotionally attached to any particular auction. Set a high bid for yourself and stick to it.
- When at all possible, snipe. There are quite a few "shills" out there who will run an auction up for the seller. Posting a bid with your high bid gives them the chance to run you up to your high bid. Determine your high bid, and wait.... When something I've been watching is still under my high bid amount and there is less than 1 minute to go, I'll post my high bid then.
These may be overly cautious but they have worked perfectly for me. In those 20 years, I've done a lot of buying and never been scammed. Your mileage may vary.