That makes sense. My apologies if my post in any way sounded other than constructive.
The problem only arises if you do a lot of work on a book, say, from PG, and want to share your work with other people on these forums. In that case, since you have the source files, you can create a normal compression version for public consumption and a high compression one for yourself.
I, of course, have no problem at all with anyone saving their own files however they like. If I understand these posts correctly, the only problem is that tompe's superb MobiPerl scripts won't work with high compression files. At this point it seems that something has to give - either use normal compression, or don't have access to tompe's MobiPerl tools, I guess.
And I can relate - I'm a pack-rat myself.