Recently we were working on a way to "make our site international" so we added subdomains, that filter all the content, depending on the detected country.
You are redirected to country.site.com
If you visit from Argentina, you get ar.site.com
If you visit from Usa, you get usa.site.com
If you visit from England, you get en.site.com
The issue is after this, Google Pagerank tool shows our site with Pagerank 0.
If this a really bad thing? Should we stop this subdomain redirections? Any ideas or help will be much appreciated!