I have a question about the function org-rss-headline. in my blog I'm using
titles with links so the generated XML contains some ugly org syntax as
titles (http://steckerhalter.co.vu/index.xml). does anyone see a good way
to make this customizable?

if not what would be the proper way to override that function in my project?

the full code is available here:
https://github.com/steckerhalter/org-mode-blog

cheers
steckerhalter