As for Wakaba, it's shitty and full of bugs.
Far from the truth. You are not installing it correctly most likely. You do realize that Wakaba is coded in Perl and it's not a PHP script? As for the reasons why I'm against Kusaba or its spin-offs there are plenty, I mean how many sites based off of it have been exploited? I've lost count of how many times 7chan went down because of that reason.