The point is that this is not an isolated incident restricted to a school or two, but the entire neighborhood located at 11553.
All the points that used to be there are gone.

I doubt that a senior high school and a junior high school have moved.
If anything, the number of points located there should have increased, and not have been reduced to zero.

I have noticed that in some areas that have formally had many Wifi points identified along certain streets, these points are now gone. Every time I check, there are less and less IDed points along those same streets. Is this a normal WiGLE purge? I can't believe that some streets that have had 10 lo...

Plenty of APs here.
Using a USB yagi to find them