Excellent questions, all of them! I look forward to some quality answers.
Is there any censorship or corruption in the universal house of justice?
I'm afraid I'm going to have to prohibit discussion of this issue -- thereby lending credence to exactly this question!

But I can assure you that this site is in no way operated by the Baha'i institutions or any Baha'i "authority," and indeed many of its contributors are not Baha'i, and I myself have made a point of not stating anywhere here what my own affiliation might or might not be (though any Baha'i could write to the US or Canadian NSAs to inquire about same).
There is no controlling influence <i>whatsoever</i> that requires me to prohibit this topic, it's my own personal decision as editor/webmaster. Further, I should note that in nine years the Administrative Order (AO) has not once approached me about any content at this site, and has never offered any unsolicited editorial feedback whatsoever. The only reason I want to exclude discussion of this topic is because I don't want this forum to be a platform for anyone, Baha'i or not, to offer what could be seen as criticisms of the AO. It makes my life easier, and keeps this forum from becoming a possible battleground. And there are other places online where people can have this discussion, though most (probably all) of them are run by those actively opposed to the Faith.
Having said that, I'll happily allow discussion of what the <i>Writings do say</i> about the possible corruption or lack thereof of the current or future UHJ or AO. It's not an easy black-and-white answer, because there are statements from the Writings which could be interpreted as saying that the Baha'i AO could eventually become corrupt, and there are statements which seem to say that it never could.
I'll close by offering this: while there are, as I mentioned, some statements which <i>seem</i> to say that the AO could oneday become corrupt, there are <i>very</i> few people familiar with the Faith who feel that it is currently so. The majority of the discussion I've seen on this topic is whether it oneday <i>could</i> become corrupted. I don't deny that some Baha'is might be unhappy with specific teachings from the Writings or specific rulings of the AO including the UHJ, but rarely do those few people unhappy about small specifics extrapolate that to feeling that the AO itself is corrupt.
-Jonah