One of two things: 1) Someone uses it for nefarious purposes, everyone involved gets implicated and investigated (in no small part in an attempt to drive peopl

One of two things: 1) Someone uses it for nefarious purposes, everyone involved gets implicated and investigated (in no small part in an attempt to drive people away from this model), no one wants to use these things anymore. 2) It works reasonably well, becomes a business, and big business provides for a small fee (perhaps free except for watching ads and your location data....) those hotspots and decimate the critical mass needed for this into unusefulness. If you think that's far fetched, this has already happened: consider email - it used to be distributed. There is now a copy of ~90% of emails on a Google/Microsoft server because at least one of the senders/recipients uses a hosted account. You can't really win an infrastructure game against established player using their own infrastructure; And the barrier to entry is so huge it's unlikely you'll be able to set up your own.