Here we go again; technically he's not really abusing his position. He is moderating the subreddit the way he thinks is right. Some people say implementations such as XT are not altcoins, but some say they are programmed altcoins like theymos. One could argue that he is censoring stuff on reddit but that is debatable. As far as
moderation on this forum is concerned, there was never any censorship (deleting threads = censorship; moving them = moderation).
he is protecting bitcoin for what he believes is best
He's right though. Satoshi on diversity:
A second version would be a massive development and maintenance hassle for me. It's hard enough maintaining backward compatibility while upgrading the network without a second version locking things in. If the second version screwed up, the user experience would reflect badly on both, although it would at least reinforce to users the importance of staying with the official version. If someone was getting ready to fork a second version, I would have to air a lot of disclaimers about the risks of using a minority version. This is a design where the majority version wins if there's any disagreement, and that can be pretty ugly for the minority version and I'd rather not go into it,
and I don't have to as long as there's only one version.I don't believe a second, compatible implementation of Bitcoin will ever be a good idea.