The Future: The Unending Arms Race
One important question that comes up in the wake of the use of proxies: how much trust can people place in any given proxy method? The very nature of proxies makes them tough to trust, and each incarnation I've looked at has different trust issues. It comes down to a tradeoff between decentralization and control.
A decentralized proxy network like Tor is harder to shut down, but it's also that much harder for the pedigree of any one part of the network to be verified. (At least Tor's creators are aware of this.)
A commercial service like Proxify in theory has more oversight over its own nodes, but it's an open question if they are that much more trustable by dint of being that much more centralized. Proxify's terms of service agreement is also very explicit that they provide the service as-is and entirely on their own terms -- something most anyone providing a proxy would want to spell out ahead of time to avoid legal entanglements.
The only truly trustable proxy would be one set up independently -- although with that, what you gain in personal control, you lose in resilience to outside attack, since one node is far easier to shut down than six hundred.
There seems little question that the struggle between censors and citizens will remain an arms race, with censorship worked around almost as quickly as it's put into place. The question remains: if such filters are so unreliable and so routinely dodged, why do governments or other groups bother to try blocking information at all?
The answer is simple: it's symbolic, not tactical. It's more about what forms of speech a given government or organization wants to show disfavor for, and not about actually preventing information from reaching people. In the long run, it's impossible to suppress any one piece of information completely -- but few people want to be seen as tacitly condoning things that aren't in their best interest, and so up go the firewalls.
Since it's unlikely those attitudes will change anytime soon -- especially in regimes like North Korea, where information control is the very lifeblood of the state -- the arms race will continue. And the growing sophistication of the services available out there only means there will be that many more ways to route around the damage.