Becky, as a test, I just posted a comment on the Daily Blog--the beautiful quilt, front side, that won a big award. It posted only on the Daily Blog and there was no mention of FB. All I can guess is the little "Share FB" was checked somehow.
I suggest you try again to post a comment on the Daily Blog--if FB pops up again perhaps you have a setting somewhere that is set for Default--really just guessing on that.
If that is still what happens and you can't find a way to turn off the Share FB option, please write to
customerservice@thequiltshow.com
I hope this helps.