Board Thread:Support Requests - Getting Technical/@comment-184543-20150306084541/@comment-452-20150306153744

Because the TOU forbids all customizations by default, and Wikia Staff choose to enforce it on a case-by-case basis. And even in cases where Wikia Staff explicitly give permission for something that would otherwise be against the TOU - they can turn around later and accuse your of "customization policy violations" even though you had explicit permission. (They're allowed to change their mind, obviously, but saying that something done with permission is a "violation" is preposterous.)

While they seem to accept the Standard Edit Summary script - and don't even seem to care when Wikis style it poorly so it overlaps into the edit area - they've been increasingly leaning towards a "no customizations" policy on newer features.

Given that the Visual Editor is the new flagship default editor, they may choose to go with "It has to look the same on all wikis".

Given that it's fairly new and still in development, they may still be heavily tracking it's use and not want extras being added, which would effect their data.

Of course, I'm being a hopeless optimist here by assuming that they haven't already abandoned all work on the feature, and assuming that they were doing any usage tracking in the first place.

Anyway, that's several reasons why they might not allow it.

Has any wiki made any additions to the Visual Editor interface yet? Until they do, we don't know if it's allowed.