"Personal computer technical support", for instance, is almost certainly referencing the scam where someone cold calls you and tries to explain that your computer is infected. There aren't a lot of legitimate businesses that could be called "personal computer technical support", and I suspect of the ones you may even be thinking of that Stripe may classify them differently. I imagine the mom & pop shops are classified as hardware vendors who happen to also offer services and the more serious versions of that business are "consulting". (And at that point, probably not using Stripe anyhow.)