Blogspot puts all blogs onto one page so every comment for one blog appears on all other blogs as well.
And like google, blogspot localizes the url so if it's a different country, it changes the top level domain to your own country. This then invalidates the solidopinion plugin
now you'll get comments on your blogger site running for all locations automatically.
Thank you for your feedback!
Now you can easily install commenting widget on multiple domains.
Please follow this article http://help.solidopinion.com/knowledgebase/articles/401405-installing-a-widget-on-multiple-domains to install widget on different domains.