Re: Why is integration so troublesome?
If you are changing a function in pluggable.php, the good news is you do not have to change the core. Just copy the function to a new plugin and edit it there. The plugin will load before “pluggable.php” and superceed the core function. No core edits required.
Glad you got it working but I really dislike “display names” and I think it’s the worst concept in WordPress. Very bad idea to allow users to spoof other names. Even the “impostercide” plugin doesn’t solve all the issues. No other blog/forum system has such a quirky concept.
BTW make sure you do NOT use the “Display Name” plugin for bbPress. It has a great deal of issues with other plugins and causes some weird behavior.