Yah, I also made some early eBay mistakes - but I've become a pretty saavy eBayer since and take time to consider everything in detail before buying anything. Limited pics/Blurry pics? next - three word description? next - not 100% feedback rating? next.
Same - but for the feedback, for me, less than 100% isn't necessarily a deal breaker, but it's gotta be pretty close. But, I'll look at the feedback; negative/positive, total amount, age of the feedback, years as a seller, etc.
I've been pretty lucky to not have gotten fully scammed or misled, mostly just over paying for things by getting too involved in the "bidding war" aspect.
I still struggle with that sometimes
Making sharp, too fast turns with something top heavy in the back then being shocked when it falls over-even inside the vehicle. Driving an econo-box then trying to cram a 60" flat screen into it.