>As a drow, I sneak automatically. As an assassin, I have the
>sneak skill, which my drowness sets at 100%. Normally, I just
>sneak, without any sneaking listed on my affect list.

Which is what you're supposed to do.

>When I
>type sneak, though, sneak is added to my affect list, with the
>same duration as assassin sneak, but isn't removed in combat
>just like drow sneak isn't. When that sneak runs out, I stop
>sneaking. Unless I type sneak again, I walk around like a
>non-sneaky human for an hour. On the next tick, drow
>autosneak sneaks in again. Is this by design?

Yes, this is by design. Why type sneak, when you already do autosneak?

>Are there
>advantages to sneak that autosneak doesn't have, so that
>sneaking with the sneak skill makes you sneakier? Or is it a
>sneak bug?

No...there are advantages to autosneak that sneak doesn't have, namely, you don't have to ever type sneak.

So long, and thanks for all the fish!