'Hater' isn't about hate. It comes from 'player-hater', where 'player' is slang for a pimp. Many people disapprove of the lifestyles of pimps, mainly because of their use of women's bodies as an income stream, and the emotional manipulation and physical abuse it takes to keep that up.
Pimps characterized this disapproval as a hatred borne from jealousness of a that lifestyle, masking dissatisfaction with one's own square, lame lifestyle, an expression of one's own inner turmoil, cowardice, and weakness.
Assholes at all levels of society picked up on this sentiment (through cultural colonialism.) 'Hater' now means anyone who criticizes the speaker for anything.
Yes. But it's less fair for everyone else to have to deal with your lack of maturity. The world would be a better and more civil place if people would move beyond the frankly medieval concept of justice as retributive parity, and certainly the internet would as well.
It's just words in a box. Unless they're threatening you personally, or doxxing you or something, just take a deep breath, recognize when you're dealing with someone who has neither the capacity or willingness to respect you, and move on with life.
I could not move on very far from Microsoft when they were at the height of their power. Surely I could use Linux but the outside world will try constantly to infect me with something MS-proprietary.
And the app in question doesn't work.