This really sounded more like Yishan was just acknowledging that he personally knew what bitcoin was. Notice that he didn't "distinguish" his comment as an Admin?
Generally when an admin is speaking "as an admin" they turn their username red, and get a letter A next to it.
Yes, this is the same issue we had at Kiva when I and another engineer said we were going to explore accepting Bitcoin. I provided a lot of caveats but there were already two blog posts about it out on the interwebs the next day.
As I noted in the thread where Yishan mentions looking into Bitcoin, there are a lot of barriers to entry, barriers that we were not able to overcome at Kiva (at least for now). Maybe as a for-profit entity they will have better luck though as they have more options open to them, I'd just caution people about getting their hopes up.
I've seen admins/mods respond from authority without distinguishing their comment. I wouldn't read into that too much (though I also wouldn't read into the original comment that much either).
I usually distinguish my comments when speaking as a mod, but it's just so it catches the eye and looks official more. I sometimes forget, not distinguishing doesn't mean much.
Generally when an admin is speaking "as an admin" they turn their username red, and get a letter A next to it.
Like this: http://www.reddit.com/r/blog/comments/12v8y3/now_is_the_time...