Transferring a discord conversation from discord; talking about markdown. Having a common shortcut for link inserting like ctrl+k - would be good.
The ctrl+c of the shortcut knowledge world. 
The 2cents:
Are md links used less because there’s friction to apply it or baseline knowledge of markdown needed?
But yeah… if there’s no vocal demand for it as of late, then guess the current form of link works for most.
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Wishlist if we do: A shortcut like what Ben said would help ctrl+k; wraps it and all you need to do is enter/paste the url.