For me Dlvr.it is a great service to post from RSS feeds to FB pages.
But, since it's becoming very popular, many FB page owners are using it. And I discovered that FB users are more and more blocking dlvr.it results in the newsfeeds, probably because certain pages are posting too often to their wall. So if the FB user blocks posts, not from that single page, but from dlvr.it, it will also block posts for all FB pages using that same service.
Wouldn't be great to have the option to customize the "via dlvr.it" tag, for example with "via FB_pagename by dlvr.it"?