StrictHostKeyChecking is being ignored

[Asif Iqbal]

 ssh -oStrictHostKeyChecking=no scrub
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
4b:c2:f2:a1:ee:f6:b2:01:e1:45:5a:6c:85:d4:ee:94.
Please contact your system administrator.
Add correct host key in /home/iqbala/.ssh/known_hosts to get rid of
this message.
Offending key in /home/iqbala/.ssh/known_hosts:93
Password authentication is disabled to avoid man-in-the-middle attacks.
Keyboard-interactive authentication is disabled to avoid
man-in-the-middle attacks.
Permission denied
(gssapi-keyex,gssapi-with-mic,publickey,password,keyboard-interactive).

Why is it ignoring `StrictHostKeyChecking=no' ?

The ssh version is

$ ssh -v
OpenSSH_4.4p1, OpenSSL 0.9.8d 28 Sep 2006


-- 
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?