Thoughts?
Proxy = single point of failure.
1)Proxys of other pool clusters seem like a good target to DDoS to me...
2Also connecting to that proxy with as many (forged/fake) clients as possible and just dropping block announcements silently might also work (and be a bit more subtle) - should also highly increase your pool's chances of winning a "block's race".
3Thirdly, non-proportional pools all don't need this Voodoo (so they would be far better connected to the network --> better chances at block solves!), and there are not that many "groups of 3 and 4" pools left for such stuff... thanks to the hoppers!
No, because it would be a private proxy, where only 2 or 3 pools have their bitcoind connected.
1) You can still DDoS their bitcoind now. Just because groups of 2 or 3 pools join together doesnt change the game much.
2)
You could not connect, it would be a private proxy only used by the bitcoind of the selected pools. Read too quick. I think if someone did something like this, it would be considered spam and some measure would be taken to avoid those clients or IP's.
3) Whats your beef against proportional pools?