I've noticed that many of You asked me about new permissions in application.
What can I say more? Permission change was noted in applications description and on this blog post.
Application won't send any of your data to any server and I will not use it for any purpose. You can make sure about this by checking source code (http://code.google.com/p/chrome-rest-client/source/browse/#svn%2Ftrunk%2FRestClientApp) or just opening chrome inspector (ctrl + shift + i) and check is any data are send somewhere.
I don't feel like deserve for lower rating just because You can't read :)