Have you thought about possibility to respond to reports from live map on webpage? It would be good… 
I second this!
It is a great idea! Also I know you add speed traps, but what about permanent photo radar cameras and a warning that you are approaching one from like 200 m or whatever! 
There is actually something already like this live… “sort of live” I know Android has a version where you can “Ping” other users and text msg’s back and forth “would be nice to just talk” but then again its a phone lol you can always call and keep waze up… but would be cool just to talk to waze users like that…
Also in the 1.4.3.12 Beta of Waze for the iPhone also supports this feature, you have to have Ping enabled in order for you to ping or get pings from people who see you. ( Not the version in AppStore )… You have to be Jailbroken and have AppSync installed in order for you to install the beta, which you can get the beta from the current version wiki from this site 
we are talking here about post messages on map event from web site… we all use this feature what are you talking about