My only concern would be around whether there's a need to be able to read old ReiserFS media. I'd imagine it would suck if you've got some Linux 7.1 kernel or

My only concern would be around whether there's a need to be able to read old ReiserFS media. I'd imagine it would suck if you've got some Linux 7.1 kernel or somesuch in the future and can't read some old media you had lying around - though I suppose if it's really that important one could always spin up an older kernel in a VM and extract the data that way.