"When I saw this poll on RealClear I almost spit coffee all over my keyboard. Even the liberal polls only have Obama up by 1 or 2 points so when I saw Bloomberg with a 13, I knew it was crap."
I think Bloomberg made up these absurd numbers specifically to boost Obama's numbers in the RCP average.
This is a propaganda type of poll, to try to create the impression that Obama is more popular than he really is.
And, as noted, some sites report an average of various polls. This ridiculous poll will pull up Obama in such averages. Again, will make it seem to the casual observer that Obama is more popular than he really is.