[wp-hackers] Database padded with junk content

[RePost]

DD32 wrote:
> I guess you're referring to the rss_* options from the wp_options table,
> Personally i'd like to see a better exporter, which can understand what are
> user settings, what are defaults, what junk the user doesnt want to backup
> (ie. just posts? or revisions and options too? etc)
>   
Wait a minute? Feeds? It's sure not my feed dumping unwanted WordPress 
news in my database.

What's the source of this content? And why would the developers so 
callously slop this stuff into users' backups? It serves no useful purpose.