I rather don't give my XPub to a web site. In order to improve my privacy am I going to give all my addresses that I've used in the past, use in the present, and will use in the future to a single site? No freaking way!

Perhaps one could create a dedicated wallet for that site and keep all other transactions private in other different wallets, but I don't think I'd even do that if I used pocket, which I don't and I don't think I ever will, anyway.