it's not in standard linux kernel(unlike squashfs) plus it is less field tested comparing to squashfs, more importantly I too avoid GPLv3 in any commercial prod

it's not in standard linux kernel(unlike squashfs) plus it is less field tested comparing to squashfs, more importantly I too avoid GPLv3 in any commercial product. Anything GPLv3 will be off my check-out list for anything immediately because I honestly don't know what GPLv3 really means to me. I use GPLv2 cautiously wherever it fits as I feel at least I know what it implies.