Hi Konstantin,

I think this issue ties in well with the shortcode madness problem -- read Justin Tadlock's article here http://justintadlock.com/archives/2011/05/02/dealing-with-shortcode-madness

I've had only problems with a commercial theme called "flexible" which is anything but flexible. I've decided to use only Native Wordpress code for sites and themes. Someone one stated on a Wordpress video that "The best developers are lazy developers" and I can tell you that the Wordpress developers are the absolute best at what they do -- Code is Poetry.