One of the reasons that keep me interested in ZFS on Mac is that this is potentially the best Unix "exchange" filesystem that's supported on Linux and *BSD.
In that light it's a pity that both the Linux and Mac implementations now create new pools that won't mount R+W on the other platforms. It'd be nice if we didn't have to remember which pool features to disable on which platform when creating a new pool, but if instead there were an easy mnemonic option that takes care of that. Or simply support for a ~/.config/zpoolrc file where you can set properties you want set for any new pool you create?
Depending on the reception here I'll make the suggestion to the ZoL devs too