"What's wrong with voting?
The OP is not proposing "voting" in the normal sense. He is proposing that we simply make it very easy for node operators to download either BIP101, BIP100, 1-MB, etc. If, for example, the majority of the hash power gets on board with larger blocks, then that's what Bitcoin will become. He wants to give more power to the node operators (rather than to the developers of a particular implementation of the protocol (Core)).
Peter what you a proposing would more likely than not shatter bitcoin into a multitude a blockchain secured by fractions of hashing power. Your only hope is that somehow "free market" would eventually lead to a consensus, not before the network is broken to pieces by catastrophic consensus failure.
Here is what you actually propose to people is a "conservative choice":
The reason why BitcoinXT is dangerous and irresponsible is because it could potentially destroy Bitcoin and split the userbase into 2 separate Bitcoin networks. There are very good reasons why most of the core developers and Bitcoin experts are super cautious with increasing the block size too quickly. But these reasons are hard to explain to regular users of Bitcoin. Yet, it is quite easy for Mike & Gavin to convince people that supporting BitcoinXT means supporting block size increase, which makes Bitcoin scale for worldwide use, and it's what Satoshi intended. BitcoinXT is set to trigger with 75% miner support. This means it can trigger with only 50% miner support + a lucky streak. Or if there are malicious people running NoXT, they can cause the trigger to go off without majority support. When that happens, there's no guarantee that the losing side will all switch to running BitcoinXT. Now you've got a split user base and miner base. Some wallets will support BTC, some will support BTCXT, and some may support both. Same for exchanges and payment processors. It's going to be total chaos. Miners will switch back and forth between mining BTC and BTCXT. Users will send transactions on one network and not know why the recipient didn't get it. The price for both coins will tank. If you thought Litecoin and altcoins dilute the value of Bitcoin, wait til you see what BTCXT does to the price! Actually, the market is already giving us a hint as to why BitcoinXT is such a bad idea.
from
https://www.reddit.com/r/Bitcoin/comments/3hp190/charlie_lee_nuclear_option_of_forking_the/cu9e4tjGet a grip won't you. Don't use your research to support a network attack. You've made your block size intentions clears but that doesn't mean you have to rally behind a governance coup just because they pretend to share your same ideals.
And please stop "developer centralization" concern trolling. Bitcoin XT is a one man show. If you sign up for this you are electing that Bitcoin development be headed by a notoriously controversial individual who has a rap sheet for being very pro-corporations and governments.
This attempt could seriously damage developer trust and discourage some much needed mind share from maintaining our infrastructure. Mike has repeatedly stated he prefers a very authoritarian method of development. In the event that core essentially becomes XT he has explicitly stated decisions would come down to him.
Think this through properly and figure out if this is preferable to an historically reliable group of core dev applying proven, consensus-based, improvement implementations.