I did a quick spot check of a few AMs last month, and ones who've not edited since 20/Feb/2013 looked to have been removed. Looking again, there seem to be a couple more that have been removed, up to about early March.
However, I did spot one certain AM that I thought had been removed a long time ago...
Just a quick question, when are area managers "demoted" from being AM? I've been inactive for a couple of months, I was area manager of Milton Keynes, and Cambridge in the UK and Gran Canaria in Spain, and now it seems I'm not area manager of none of these regions???
What type of edit was it - can you provide a permalink?
Changing turn restrictions does not update the "last edited" data on segments. It's possible that, if that was the type of edit you made, it won't be "visible" to Waze.
We don't know the precise mechanics Waze use to determine their 90-days figure - or, indeed, if it's 90 days or 3 months. We just know that it's a process that seems to run fairly regularly, based on names disappearing from the AM layer.