IŽd like to see a way to communicate with users instead of flooding their comment field.
(A private comment system, to comment on users (so that you do not need to know their nickname would be good, too))


=> Why ?

I invited my friends but they chose new nicknames which i do not know, 
so i do not know whoŽs who.

Maybe a feature which shows the userŽs mail (at those users I invited and joined wuala).