If I recall correctly, it’s more or less enabled by default in gVim on Windows for mouse selection (see ':behave'). I’ve never seen anyone deliberately invoke i

If I recall correctly, it’s more or less enabled by default in gVim on Windows for mouse selection (see ':behave'). I’ve never seen anyone deliberately invoke it, and I’ve definitely seen people avoid that behaviour on Windows. I would definitely consider it a misfeature, given how it complicates things, muddying modes when invoked, and when a simple c or s from any visual mode has roughly the same effect.