No reason you should. You can not care about what anyone thinks about your writing, I won’t care about what you say enough to read it, you won’t care what opinion I form…we’ll form a perfect circle of unending apathy. Nothing wrong with that at all.
However, you may have noticed that this conversation is taking place on an internet message board, the whole purpose of which is to allow people to come together and converse. If all you want is an echo chamber where you don’t have to deal with other people and their pesky opinions, well, why are you posting here? What is the point? Why not just stay in your bedroom and talk to yourself?
Again - I’m not saying you have to post here. That’s totally up to you. But if you’re so aggressively uninterested in listening to what people have to say, it seems rather a pointless pastime to me.