The ironic thing about all this is that the (largely) Apple mentality of hiding everything away makes it even more difficult to troubleshoot when something does go wrong, like this. Most users won't narrow down the problem so easily to their own machine if they only see the slowness described in the article... but what they will notice is a WiFi activity light that's blinking almost all the time, even when they aren't doing anything, when it used to not do that.