Can't disable game instructor (multiplayer, special infected)

[slaithe]

Quite a nuisance, I've tried toggling the setting a few times, restarting both Steam and Left 4 Dead 2, but the help messages regarding the use of special infected persist.
Any suggestions on resolving this?

[Jay]

I've been having the same problem since a few weeks. It started with the game saying I lost all my achievements and then when I restarted the game I got them all back. However while the game instructor is off and always has been off, I still get these terrible help messages in versus. I can't seem to get rid of them.

[Maur0]

In console or autoexec file:

gameinstructor_enable 0
cl_autohelp 0
cl_showhelp 0

[slaithe]

lol, thank you from 2013!