Thank you for your kind words! Yes, there is some danger that if some site contains such delete, lock, etc. links, they could be explored by Offline Explorer. In most cases, however such potentially dangerous links re-ask for a confirmation using HTML forms. Offline Explorer will explore such forms only when the corresponding feature is enabled (planned for 3.0 version).
However there are some sites that are poorly-designed and do not ask for a confirmation. In such cases, please exclude any link that you don`t want to explore in the URL Filters | Filename section of the Project Properties dialog. It should be not hard. For example, if some forum uses .../lock.asp?MessageId=jgsxjkghjk to lock files, .../delete.asp?Msg=ghjgh and logout.asp links for unwanted actions, please simply add:
to the Excluded filename keywords list (select Custom configuration) there. Any URL that contains the above inside will be skipped.
I hope this helps.