Hey Nicklas,
I am really sorry for the delay of this reply as it is actually a public day off for us here. When automated truncation is enabled, EasyBlog would strip off html tags on the listing page as that is the only way for EasyBlog to properly truncate the text at specified characters (without html tags).
If you want to explicitly render html tags on the listings, there is 2 ways to do this:
1. Disable automated truncation,
http://take.ms/M9ldj
or
2. Explicitly insert a read more in your post to separate between intro text and the full text.