- WoltLab Suite Forum
WCF 3 went a long way in making it possible to customize your site's URLs, but despite this, it seems that it's still not possible to define a forum's URL in WBB.
For example, a forum named General Discussion will have a URL such as /2-general-discussion/ and, even worse, a forum named Fish n' Chips will have a URL like /3-fish-n-chips/. It should be possible to add a custom URL slug for each forum, so you can change General Discussion's URL into /general/ and Fish n' Chips' URL to /uk/.
That other forum software already has this as an option, and it's one of the few advantages that I believe they still have over WBB.