I buy and sell on eBay. And yes, eBay does take their share of the sale cost, but that is the cost of doing business. You should be considering that in your pricing of your items.
I do stay away from any out of country purchases and sales because of obvious scams and the possibility of damage and theft of the items during shipping. I learned that the hard way, and once was enough!
In 2 years, I’ve only been screwed 2 times buying on eBay. Before I buy,I always message the seller. If they reply back to me with a reasonable answer to my question then I can make a informed decision. If they don’t respond, well,,,, don’t buy!
Always pay with PayPal. The seller pays a fee, and there again try to figure that into your pricing. But if you are the buyer and there is a problem, if you did your due diligence and made a little effort to make sure of what you are buying, then it is easier to get reimbursed for your money.
I stopped doing the auction style for selling because of no control over the sales price. But also the problem of winning bidders not paying and the wait time involved before you can safely relist the item.
Always look at the sellers feedback! It’s a big indicator of the sellers reputation.
Remember if you are looking to buy, you can always ask the seller for more information AND pictures of the item!
As for opinions, I’ve seen more scams and junk on Craigslist than on eBay. But just my observation.