Its not silly. Sure, everybody can do it, but it take time and sometimes accidentally the brake go on when using Mouse Y for throttle and brake. Pedals will be alot faster than doing throttle up and down with a mouse while steering with the same mouse.
I guess i must buy some pedals...
@ the other players which have me misunderstand
I use not the preconfigured Mouse-Option in LFS, i use the Mouse-Axes in the Axes-FF. This is a special option for steering in LFS.
If You use this, then is a W printed beside your player name in the list of connections. True true, the Button-User have no problems, i know this.