My solution is to not change ad_form, but make sure you use it right.
ad_form -extend ... -form [list $elm_name:$type($widget) { label $label } ... ]
May be too hard to explain properly in the docs?
It's only an issue when auto-generating forms using ad_form based on user input. The parameters issue is not critical, because only people with site-wide admin can add a package parameter.
/Lars
