In deciding the disclosure disposition of those documents containing personal details lifted from the lives of private individuals, the documents were closely scrutinized in an effort to identify any public benefit to be gained from their disclosure. It was ultimately determined that no discernable public gain would be achieved from the disclosure of the information subject to this review. On the other hand, the potential private harm that could be suffered as a result of the release of this information was found not only to be tangible, but also significant and reasonably probable. In the case of these documents, the potential private harm stemming from their release was determined to clearly outweigh the total absence of any public benefit to be gained from such disclosure. Consistent with this analysis, it has been concluded that the release of the subject information would constitute a clearly unwarranted invasion of the personal privacy of the individual(s) to whom it pertains. The USCIS, therefore, must deny your request for access to this information under the authority of FOIA exemption (b)(6).So there probably is information in the original BC that is derogatory. There it is plainly stated by those who have seen related documents. In no uncertain terms.
Page 8 is just boilerplate standardization of a legal document's structure and language, which in this instance is a FOIA denial of a request to produce documents.
There is nothing in this document by itself that leads inexorably to an inference that derogatory information is being withheld that should be released. Don't get me wrong. There may be derogatory information being withheld that should be released, but this document by itself is not dispositive of the issue.
Cordially,