I clicked on All Collections, searched for an icon and found a few, but then I wanted to view other icons in it's collection. I don't see a way to do that, or even figure out that icon's source. Also, the "Search Icons" box is cleared when I move between collections. No (obvious?) way to sort the collections by the number of icons.
I’ve got to ask, which other Wi-Fi mapping provider requires a SSID suffix to opt out? Is it one of the big boys or is it someone like wigle.net or openwifimap.net?