There's a few different reasons: First, reading about similar experiences didn't make me optimistic. It seemed like 50/50 between getting someone who would help and someone who would tell you that the case is forever closed without recourse. I got the feeling that the in weird cases like mine these techs didn't actually understand what was going on and it was just the luck of the draw of what tech you got.

Second, I realized how powerful these big platforms like eBay are. I looked around for alternatives in case I did get permanently banned and I sure didn't find much. What was particularly creepy to me was how being an undesirable to eBay could potentially spread: they track your account, name, address, credit card number, IP, and so on and seeing any one of these can lead to bans on other accounts. In a lot of ways this makes sense, but in theory, if I happened to log on to my banned account at my mom's, it could match my account with her IP and ban her account as well. I doubt this would happen in eBay's case as support reps would probably help her if that happened, but it definitely brought to mind the Chinese social credit system where linking to an undesirable can make you an undesirable yourself.

Third and most important was personal. I'm engaged to someone who is planning to use eBay. I wouldn't care too much about being banned off of eBay but I would hate to see her life become any harder just because of some weird glitch.