Do you want your comments to be locked when you are banned?
This sends the wrong message to new users. Imagine if you were just signing up and you saw this, then you'd probably think "d*** these mods are ban-happy!"
We're not. Bans aren't supposed to be a feature of the site- only if you have persistently poor conduct.
Furthermore asking for options when one has been banned is somewhat incompatible with the idea behind the ban in the first place. Like imprisonment, some of your user privilieges are revoked when you are banned.
