eBay has not added many new features in years. There are problems with the platform, like auction sniping, that they have not addressed.

PayPal as well to a similar extent. There are a litany of problems that its users have been complaining about for years that have not been addressed. I see PayPal rolling out certain new services but ignoring existing services. If PayPal was ahead of the curve, there would be no need for services like Venmo (now owned by PayPal!) Or even Stripe.