Because it works great as a platform, and because I've been using it for 20 years.
But for a new user, it looks completely messy, with pages that are vastly different from each other and many sections that look exactly as they were in the early 2000's.
You're saying your experience with GS is even worse than with eBay, right? How can it be?
I'd be sad because eBay works great (even if their software is old and would need a complete rewrite).
Why does it need a rewrite if it works great?
Because it works great as a platform, and because I've been using it for 20 years.
But for a new user, it looks completely messy, with pages that are vastly different from each other and many sections that look exactly as they were in the early 2000's.