Share Point User Information List : Few Facts

Recently we were working on User Information List in WSS and observed few facts like

1) We can't attach an Event Handler on this User Information List like any other list to capture user profile updation.
2) We can't create a custom search scope directly against User Information List.
3)User Info List has 2 Views namely a) Default View b) List View . These views only appear for all sharepoint groups in this site collection.
4) If we create a new view to display more custom fields the same view available for all the sharepoint groups.(i.e. If we want to change or create a new view for all sharepoint groups change it in this list as it is the root for all group members data)