What kind of idiot doesn't RTFA they're complaining about? He *did* back up his stuff; that's how he was able to recover his stuff. The blog post was informational, for folks who don't know about this issue.
That is how iCloud music library works. It uploads your files and stores them. If there is a match, you can download a high quality version. If not, it stores your original version. You can download your music at any time, permanently. Nothing has been deleted or 'stolen'.
Did you actually RTFA? He *couldn't* download a copy of rare alternate versions he had; those are gone, replaced with the standard version of tracks, because the band and song names are the same. Nor could he download his own music, the music he wrote and performed and recorded himself, in the full WAV 16 bit/44.1k form he had it in -- only in a lossy format, because Apple converted the WAVs to a lossy format and threw them away.
Yeah, yeah, I know, the meaning of words and phrases change over time, grammar nazi, blah blah blah. But the simple fact is that there are LOTS of other phrases that mean what you're trying to say when you misuse "begs the question" and that are thus available to you; but there's no other succinct phrase in English that means what "begs the question" actually means. Re-purposing that phrase weakens the language: it takes away the only useful expression for one concept, and allocates it to something that already has a number of different simple ways to be expressed.
The notes in the minor pentatonic scale go so well with blues and most rock music that any idiot (such as me) can produce a musical-sounding improvisation. Just randomly picking out notes in the scale, or going up and down parts of the scale, sounds great on top of the I/IV/V-based progressions that make up so much of modern music. And let me tell you, when you're an at-best "advanced beginner" musician, and you solo for the very first time and something that sounds like music comes out, it feels as good as any sex ever did. My interest in the guitar had been flagging a bit, until a teacher taught me the minor pentatonic scale and gave me the opportunity to play some solos on top of his chords; since then, I've wanted to learn guitar, play guitar, etc. pretty much non-stop.
Specifically, the original poster writes: " Intriguingly, the BICEP team has yet to flat-out deny this."
However, the very first link quotes one of the PIs for BICEP by saying: "As for Falkowski's suggestion in his blog that the BICEP has admitted to making a mistake, Pryke says that "is totally false." The BICEP team will not be revising or retracting its work, which it posted to the arXiv preprint server, Pryke says: "We stand by our paper.""
If at first you don't succeed, you must be a programmer.