Feel free to correct me if I'm mistaken, but it's my understanding that WCF doesn't support the implementation of a WYSIWYG editor in ACP, and addons are forced to provide a basic editor (usually having just text or the ability to insert code and bbcode). If that were true, it would hinder developers' ability to provide more flexible and powerful plugins that could be easier to use, since not all forum owners know their way around HTML or PHP.
As I said, maybe this is not how things are, and I am completely off the mark. In that case, I'd be grateful if anyone who would clarify this for me, because through the years, I have stumbled across a wide number of addons (I am not talking about those full applications that include their own editor) that cannot or maybe don't want by design use a full editor in ACP.
If that's something that WCF is currently lacking, please consider implementing it, as it would make things a bit easier for everybody