@Lafunamor Manage > Users is in the ACP and has a "Ban User" option under Edit. Though it could be possible to add it to profiles based on usergroup in a sense if you have Moderators on your forum.
I'm so used to Vbulletin that we would add a few lines of code to only allow access for certain groups to use lets say in this case:
<li><a href="#" class="ban-user"><i class="fa fa-fw fa-gavel"></i> Ban User</a></li>
This would only be visible to Moderators and Admins and require password entry before banning said spammer.
This is just me rambling but I do know this can be possible with a few edits or a simple plug-in. Maybe add it under the drop-down list under the profile button?