Why are stages with walls/walk-offs banned?

[S_B]

Last I checked, and correct me if I'm wrong on this, aren't stages with walls banned due to the potential for easy infinite grabs against walls by certain characters?

Also, aren't walk-off stages typically banned for the purpose of keeping chaingrabs from being an unstoppable, easy KO?

EDIT: To clarify, I mean in brawl, sorry.

 

[MarsFool!]

Why Stages with walk offs are banned:

Mewtwo.

Zelda.

Mario.

Dr. Mario.

Marth. Down throw/Back throw Tipper.

Wall Infinites/Stalling Purposes.

 

[AlphaZealot]

I never agreed with banning walk off stages in Brawl. Some people ban them because their favorite character is at a big disadvantage against D3. If you don't play a character that can be CG'd, you should be pissed at the TO's who ban the stage.

Fortunately, the banning is mainly in the northeast (though it is spreading).

 

[socandrewcer]

Ther banned for easy killing by throwing.
I think those levels should not be banned.
Its like this if you dont wanna get grabbed dont get grabbed.
If you dont wanna thrown tons of times dont get grabbed.