That's a main reason why some tapers/filmers have decided to not share their recordings over the years - due to the disrespect and the fact that they don't want their stuff shared in a lossy way. Simple as that, they just decide not to.
There's tons of shows out there which have been recorded, just not shared all due to that fact.
The only thing wrong to me, is when your exact recording ends up in a cd that people are selling for like 60 dollars or more in a store... now that would make me pissed off, other than that, i dont see the big deal of it.
I've seen live recordings that were posted up for download for sale before, only come to find out that the CD was made from the mp3's! The idiot compressed the FLAC to MP3 and then sold it. Now that is even worse!