Bug in likes count

[Venu]

Hi All,

I am using disqus component in my blog.
http://venu-t.tumblr.com/post/22582781336/html5-html-css-js-feature-list

I am having issues with likes count. I logged into facebook and liked a post, when I refresh it, count going back to old one.

1) Will it allow anonymous people liking?
2) What is the logic behind the like option?


Thanks in advance

Thanks,
Venu