@DerBjoe
How much I would like to respond here in detail (*sigh*). But I simply don't have the time. Also, the entire discussion tends to go in circles a bit. I count the owners of such houses among supporters (even those who basically have no idea about it) and the avoiders as opponents.
I find the reading "Background / February 2014 Hexabromocyclododecane - Answers to Frequently Asked Questions" by the Federal Environment Agency quite interesting.
die besser Biologisch abbaubar sind.
Surely a rather cute understatement of the actual problem. ;)