Regarding changing algo's, the litcoin devs shared important opinions and details about switching. Read what they had to say here:
https://litecointalk.org/index.php?topic=18166.0**Edit**
X11 is still new, we need more time to watch it and see how it grows/functions over time. Waiting a month and analyzing X11 over that time makes more sense than rushing into it and finding out potential issues later. You guys should appreciate that we are taking extremely careful consideration, there are many factors at play and taking more time to determine those will only benefit us. It's our responsibility to provide a stable, healthy, and valuable coin--we cannot do that with knee jerk reactions.
It's a really bad idea to wait, because the more you wait, the more difficult it's gonna be to change. X11 is mature enough (over 3 months now) for use, and now that you're at the very beginning you can change algo fast, without big technical AND POLITICAL risks.
The more you wait, the more difficult it's gonna be, as that Litecoin post you linked has proven pretty well. Litecoin is just too big to make that big of a change without a huge risk, you're still small, you can do it while you're still small.