is a blog an attributable source for reporters?

Mark Cuban: "The satisfaction of knowing that each will have to explain to their editors what a blog is — and argue for who knows how long about whether or not BlogMaverick.com is an attributable source — crept over me and that jaunt on the gauntlet flew by."

To understand the context you need to read the rest of the post, but what I find interesting is that Cuban, by only providing commentary or quotes to reporters on upcoming matters on his blog, could aid the mainstream adoption of blogs as attributable news sources.

see also: The Benefactor