Now that I have your attention, the following alias line:

alias Throttle_Assist_Forward "Accel +1000; set flymodeflag 0; echo 'Forward Throttle Assist enabled'; alias Throttle_Assist_Toggle Throttle_Assist_Backward"

...spews this:

[Mon Dec 4 03:51:24 2006] Flight-Assist mode disabled.
[Mon Dec 4 03:51:24 2006] Flight-Assist mode disabled.

...everytime this alias is used.

Reference: http://www.vendetta-online.com/x/msgboard/1/3229?page=14#193964

Dont use Calders bind then. :P

Where's the fun in that? And what do I learn then?

Looks like you just screwed something up in implementing your own bind.
Works just as expected here.

Try a /print 2 and look through errors.log to see what VO thinks the command actually is.