Board Thread:General Discussion/@comment-26923519-20170312160038/@comment-25024589-20170312165128

tl;dr: If given the choice, I wouldn't retire any of the editors (unless absolutely necessary...in which case, bye bye Butterfree Rich-text Editor).
 * VisualEditor: It's got quite a few bugs, but it helps some people with the visual aspect of editing. (I should know – in my very early days as a user here, I used it.) As such, I'd keep it around
 * Source Editor: The best editor, in my opinion – it doesn't mess up the visuals unless you specifically code them to look messed up. However, the editor can be complicated for new/inexperienced users, so it may not be the best for them. Still, I'd prefer not to retire it.
 * Rich-text Editor: A mix between VE and Source. Works decently well, for me at least, but has a lot of bugs. Despite this, though, I know people who like the combination of aspects, so...
 * Mobile Editor: It's all some users have. That being said, why get rid of it?