How can one remain relatively anonymous while using Ripple? Inspired by this and that.

What can an individual that uses Ripple do in order to remain as anonymous as possible? How do Ripple's "anonymity profile" compare to Bitcoin?

One specific difference is that Ripple accounts need XRP to be opened, and that XRP has to come from somewhere, while Bitcoin accounts are free to create.
Current client doesn't expose it yet, but each account is really an Account Family of un-linkable addresses which can be single use.

https://ripple.com/wiki/Account_Family