netmeg - 11:23 am on Mar 7, 2013 (gmt 0)
The first thing you need to figure out is if Google is doing it or WordPress is doing it. If it's WordPress (and I suspect it is) then you can change your settings or use an SEO plugin to take the site name out of your title.
As for using the SEO plugins to change the titles...I think that's what Google doesn't want. It's obvious SEO and doesn't help visitors. Placing the website name in the title is Google's way of saying, "Hey! If you trust this website name, then click here!"
This is not true at all. The title needs to describe the page. That's not manipulation.