Why is data cleaned from Opera?

CCleaner for Windows
1

I'm wondering why less sensitive data of Opera is cleaned than other browsers. Internet Explorer, Firefox, and even the recently released Chrome have more data cleaned by CCleaner than Opera....basic things like download and form history. Why is this, and will these features be included in a future release of CCleaner?

EDIT: the topic should read "Why is LESS data cleaned from Opera" <_<

2

Probably because nobody has mentioned it before or offered an updated Opera cleaning routine to cover more files. Whenever I've used Opera (Classic Install) I always just used my own customized Opera cleaner to remove the extras.