You are confusing this thread with your thread. Is this confusion intentional?
What you're talking about is getting people to replace their Bitcoin software with software the validates some other rules. This is totally orthogonal to attacks involving large amounts of hash power.
I do not see a confusion and it is not intentional. The OP asked about how bitcoin could be destroyed and how we could protect it against it; attacks involving large amounts of hash power IMHO are only one of the possibilities; I see others, which is the reason I contribute to this thread.
They have _all_ been 'beneficial' to their users in that by participating in them you're one of a much smaller set of miners, and thus getting a far larger percentage of the total produced coin than in Bitcoin.
This is true when you measure payoff in number of coins. The argument probably does not apply when you measure it in USD or EURO, since the coins of the other chains have much lower exchange rates or smaller acceptance or less trust due to smaller community and so on.
you just keep continuing the boring debate. Please don't spread it to other threads.
Sorry. Is this your thread? Did the OP ask me to leave? Where? Should I be violating some rule of the board, I apologize. Please point out the rule, so I can follow it. Part of my interaction here is exactly the attempt to reach your level of expertise so that my contributions are less boring ;-) Why are you making it more difficult to learn?