Did you ever sold something online?

I've sold a couple of the cheki that I won in raffles. Most of the time I trade those for other ones. I've sold a handful of rare pokemon and YuGiOh cards a couple of times, those usually went south for me tho. I experienced a lot of people saying they never received their item when shipped with tracking, what sucked about those is that eBay/Fedex wouldn't want to reimburse me when I purchased insurance protection

nope, i haven't. But my Dad sells stuff every other week online.