When users edit a page for the first time, they see a dialog saying "Welcome to {{SITENAME}}". They are also offered to move to visual editing.

The problem is that users see this dialog even if the first page they're trying to edit is protected. E.g., if a user opens the "View source" tab on the main page of enwiki, they get the impression that they CAN edit the page, while they cannot.

Therefore, I think the "Welcome to {{SITENAME}}" dialog should only appear at the first time the user is editing an editable page.