I think this is a really good idea, especially for users with 0 or less than x edit count, unless they intentionally switched to wikitext editing and successfully saved an edit.
This is suggested as part of the unified toolbar which brings more consistency to wikitext and visual editing but allows a user to switch in between the two (https://www.mediawiki.org/wiki/Consistency_between_Wikitext_%26_Visual_Editor)

On Mon, Jan 27, 2014 at 12:36 AM, Jan Ainali <jan.ainali@wikimedia.se> wrote:

We had a thought here on the WMSE office. Today on svwp (and perhaps all other wikis?) if you create an article from a redlink you get into wikitext edit mode immediatly. How about doing an A/B test for new editors (or even IP-users) and assign &veaction=edit instead on redlinks for a sample and compare how many actually complete the article creation.

Or has this test already been made? If so, where can I find results?

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