How could somebody says ugly things and go to bed peacefully at night? Keyboard nowadays are soft but what comes from it are so much harder than what the old keyboards do. It’s touchscreen, but it touches somebody’s heart too. It could cause a serious damage to somebody’s life. If you can’t say nice things, just keep it for yourself. If you don’t like a situation or anything but you can’t give any suggestions or solutions about it, just leave it as it is, let it be, and walk away.
And by the way, doing or saying rude things won’t bring anything good in return. Ever.