Rated 4 out of 5 stars

Good job!
It cleans automatically as configured.
Though, the localization doesn't support utf-8 such as zh-TW, zh-CN -- I guess also include kr-KR or jp.
Also, for localization, it's better to use 1 entity " %n " instead of 2 entities: "" and "".
Please have a look about above issues.
Thanks for your efforts!
p.s. Sorry for post here because no e-mail or web-site of the author to feedback.

This review is for a previous version of the add-on (0.3).