In message <20070610172224.2b0dcc7b.juan@xtrarom.org>, Juan RP writes:
>I don't know the reason why those were made the default for non-root,
>but there's some mention about it in mount(8)... at least in -current.

On my system, at least, it's not that they're the default -- it's that
they're *not* the default, but without them, mount fails with EPERM.

But my system's a month or two out of date, I think.  Kernel May 10.

-s