Users, even the garden variety, at best tolerate changes in UI and at worst contemplate leaving. Every Facebook change is accompanied by users bitching. Reddit

Users, even the garden variety, at best tolerate changes in UI and at worst contemplate leaving. Every Facebook change is accompanied by users bitching. Reddit is full of people refusing the redesign. Nobody has ever liked a youtube change. Literally no product ever benefits from doing this. Now look at craigslist with its 90s brutalist webdesign. Straight to business, no bullshit. Nobody ever bitches about the design of craigslist, and if they changed the design nobody would be happy about it. Anyone who suggests a UI overhaul almost certainly doesn't understand the product or the customers.