@alyx I was going to say Windows after I read the first line lol
Hmm I guess it could be the Microsoft office suite, but maybe thats cheating since it is Windows kinda.
Personally I despise whatsapp because I am forced to use it at work and in normal life in order to get things done.
Discord could also be it, they refuse to allow people to hide blocked messages, and they give excuses like "the way discord is built doesnt allow for that" which is complete bullshit, so for some reason they have a secret agenda to force people to be annoyed constantly by those they have blocked, and then you realize the word "discord" means disharmony, conflict. Something to think about.