I did use the tags on the text. I guess you mean at every paragraph etc.
I mean that your post is hard to read because of the bad formatting. You'll be more likely to obtain an answer if people don't have to guess where the linebreaks are supposed to be.
Where does data dumper dump data?
It turns it into a string, actually valid perl code that compiles back into the dumped data. This means you get to see exactly what your data is. In your case, you'll see that wherever you look to see the output from warn