A'isha
Miss Schoolteacher
The actual social media posts establishing ansar al sharia's involvement have been discussed at lenghth:
And which confirms everything the CNN article says and the description in the initial CIA draft of the talking points.
You found a random message board post at a, in your own words, "web page [that] is a forum for supporters of the Sharia", not an official Ansar al-Shariah site, and the post merely says that Ansar al-Shariah gunmen participated in the attack, not that they claim responsibility. The CNN article even speculates that the person who made the report mentioned in the emails might have been reading a site for supporters instead of the actual Ansar al-Shariah sites, since the report mentions a claim of responsibility that never happened, as well as an Ansar al-Shariah assault in Embassy Tripoli which also never happened.
The only thing your website post there actually says is something that Ansar al-Shariah admitted to at the same "press conference" where they denied responsibility for the attack itself, that Ansar al-Shariah fighters were present at the attack.
So, what we have is Ansar al-Shariah officially denying responsibility while saying their fighters were present and nowhere officially claiming responsibility, while an unofficial fansite post says nothing about claiming responsibility, but says their fighters were present.
So what does the CIA say in the talking points again?
Initial press reporting linked the attack to Ansar al-Sharia. The group has since released a statement that its leadership did not order the attacks, but did not deny some of its members were involved.
Exactly that.. No Ansar al-Shariah claiming responsibility, because they didn't. No attack on Embassy Tripoli, because there wasn't one. Which means that the State Department emails contained erroneous early reports, and therefore are useless as "smoking guns" to prove that the Obama Administration knew the "truth" before the talking points were assembled because the information reported in the emails was wrong.