voltan
commented
11 years ago I like this features in user system :
- Multi level register and Authentication whit EMAIL and SMS for check valid email and phone number. it need sms getaway ( like payment getaway ) . like google and facebook
- Multi level for login like google 2-step verification
- Sub profile pages in modules ( tag module is good example ) for example in gallery or news/article module we add page for user and its extends from profile class
- Sub modules for user system / for example in Social Network website add panel like Facebook or Twitter Or in shop website add list of invoices and services Or support system ( tickets ) Or in video websites add change like YouTube and .... ( this option is like Previous option )
See https://github.com/taiwen/pi/wiki/Pi-User-System