Is this also backed by research? Because I sort of doubt this. An old browsers become a nuisance quite fast, with "sorry, you need a browser that supports $fea

Is this also backed by research? Because I sort of doubt this. An old browsers become a nuisance quite fast, with "sorry, you need a browser that supports $feature and yours doesn't". Well, I mean, I had to stick with 2 years old browser for some time and this certainly wasn't a good UX.