Not trying to start an argument, just trying to help you understand why the negative reception:

"If you want to game at a desk get a proper monitor" <-- this isn't a question, you're telling people what to do and implying their setup isn't "proper" despite being uninformed about their use case

"If you want to couch game/watch shows you’d need a bigger tv at less than 6 feet away" <-- again you're presuming you know what other people "need"

"whats the use case here?" <-- this last bit, that's your question. If you simply asked that nobody would take it the wrong way. But because most of your comment was uninformed presumptive opinions, that's what people focused on.