well considering I don't have LIVE access anymore, the only thing I can provide as prove is my memory of fighting in Highpass:
"Gnoll_Soothsayer regains its concentration and continues casting."
Does message like this sound at least remotely legit?
Of course this doesn't indicate that mob was actually Stuned, only that he recovered from interrupt.
On other hand Bash can lead to Stun, Stun does leads to interrupt, and interrupt can be recovered from - this does sound logical.
UNLESS, its specifically was codded that Stun caused interrupts cannot be recovered from.
This message sits very firmly in my mind, but, I must say however, that the only time I ever had access to Bash is
when I played my SK, who was not my main, so maybe I misremembering things, and confusing
them with messages that indicated that a player has recovered from a stun.
On Stun duration - I think I can say for SURE, that fleeing mobs were stunned for good 1.0 sec, thats 100% for certain -
I remember my days fighting in Blackburrow at low levels very well
Face to face stuns/durations I am not really sure of.