Kicking them allows them to return and cause trouble?
Jailing them might work as more a preventative measure against the particular trouble they're causing?
I could imagine ULX 4 having an adjustable vote punishment system.
Allow the server host to select what vote actions can be selected, and perhaps even allow vote punishment per group.
vote (ban and below) for one high group.
vote (kick and below) for next lower group.
vote (jail/maul/whatever/...) for lower groups.
But, indeed, not seeing it for ULX 3.
Suggest learning how to write your own addon for it.