I say distribute them in mp3. The question isn't shn/flac or alternatively mp3. On the archive shn/flac is definite, the question is whether to also allow mp3. I have already downloaded several mp3s off the archive myself. If I just want to get a feel for a band, mp3 will do the trick and it is alot quicker. And if folks are doing all of their listening on an ipod or car stereo, the mp3s work fine for them and are what they want. Why make it so difficult for these people to listen to live music and new bands just because we don't agree with their listening tastes/philoshophy?
If it was the old days of just a few years ago and these mp3s could "pollute the gene pool" then it made sense to limit their distribution. But with the archive, etree listings, etc, their will be easily found md5s/fingerprints that will readily determine which are the true high quality shn/flac sources. Not to mention it is already quite easy to get the high quality shn/flac sources.
People who care about quality can easily be sure they are getting it, and not unknowingly getting crappy mp3s. To me, the main objective is to spread the music. Also, there is the need/desire to archive the music. But with the archive, etree, md5s, and fingerprints, that need is being taken care of. So why limit the spread of the music in whatever form works for people?
I'm all for high quality music reproduction and have a decent amount invested in playback, but I still use the oft-attacked mp3s. To check out new bands quickly and easily, to easily bring along alot of music with me on trips (yep, I loaded up the hell out of my Nomad with mp3s before I went on a 2 week Alaska trip). My wife uses an mp3 player when she works out. I'm sure lots of folks even on this board use mp3s here and there--what do you think the rest of the world is doing?
Taping and spreading music shouldn't be about ego. People who really appreciate quality will appreciate the quality of your recordings, but let the folks who don't care listen to the music anyway.