I fucking hate modern design and modern designers.
It's bad enough they make 'features' I don't want enabled by default, but it's even worse when the lazy/incompetent developers can't even give me the option to change it.
I'm more unhappy with messaging apps that notify people if you've read a message. It did have a positive side effect in that with Facebook, I couldn't quite bring myself to delete the account because it was the only way I maintained contact with many people, one they introduced that feature sometime around 09 or something, it caused me to reduce my use of the messaging capabilities significantly but frankly I'm not sure that's really what Facebook or I really wanted. It's a common feature in measuring applications and I fucking hate it. I need to read the message to decide if I want people to know if I've seen it and I can't do that without telling them I've seen it.