meh the fan-articles are so hard to read. "fact!"
"unlikely!" "using these facts!" "maybe its bad but at least zfs has it!"
well dude, here's a fact: http://lwn.net/Articles/506244/
have you even used btrfs lately? because that collides with some of your "facts"
so sure, zfs has advantages over btrfs and is arguably better right now, but the latter is still experimental. the main reason for btrfs is the proper licensing for the Linux kernel, anyway - else we'd all be hacking on zfs since day one and there wouldn't even have been a need for btrfs.
Also btrfs has been recieving substantial upgrades every kernel revision. Already its worlds better then it was in the 2.6.x series of kernel and they are finally getting around to tuning everything for performance. The truth is some of those "factS" are true, but most of them are pointless.
well dude, here's a fact: http://lwn.net/Articles/506244/ have you even used btrfs lately? because that collides with some of your "facts"
so sure, zfs has advantages over btrfs and is arguably better right now, but the latter is still experimental. the main reason for btrfs is the proper licensing for the Linux kernel, anyway - else we'd all be hacking on zfs since day one and there wouldn't even have been a need for btrfs.