Well, yes, there is lukeprog fatigue, but not in the sense that you probably mean it. One, or even a couple, of such posts from the same person are fine. It's good to have information about how rationality has impacted somebody, and it's motivatonal as well. But when the same person keeps posting about the same things, over and over again, it ceases to have motivational value. And while it's good to summarize old material, clarify it or make it sexier (your Existential Risk post was great, in those respects), simply linking to old stuff or restating it provides little of value.

• This is your third "yay rationality" post within a relatively short time: it was preceded by Can the Chain Still Hold You and What Curiosity Looks Like. So the motivational impact is rapidly hitting zero.
• "Power 1", is basically a recap of What Curiosity Looks Like (which by itself is less than two weeks old!), plus it explains things about your Christian background that you've already told us about.
• "Power 2" is a recap of The Neglected Value of Scholarship, as well as a plug for some of your later posts.
• "Power 3" recaps parts of your personal history that most people here are already perfectly aware of.

You're right in that a lot of this material would be more appreciated if it was coming from somebody else, but it's not because we've started to take it for granted that you're producing quality material. It's because coming from somebody else, it would provide an independent datapoint about this stuff being useful for someone. You restating the ways in which this has been useful to you only tells us that you haven't changed your mind about this being useful to you.

(And I second the "don't take this personally" bit - I still upvote most of your posts, and I think you're one of the best posters on the site. It's just this particular series of posts that doesn't thrill me.)