Disclaimer is definitely off-putting. It comes off as implying that you consider criticism to be unwelcome. I can understand the desire to exclude unreasonable people from the conversation, but posting a sign, “No idiots allowed” doesn’t accomplish that. It may discourage people who disagree with you from posting, but only because they will assume from the disclaimer that you’ve made up your mind and that it is therefore not worth their time talking to you. This will occur independently of how intelligent their feedback is, in fact, I wouldn’t be surprised if there was some reverse selection here where the people who make low effort criticisms will comment anyway, but those who would make more intelligent criticisms won’t find it worth their time.
Disclaimer is definitely off-putting. It comes off as implying that you consider criticism to be unwelcome. I can understand the desire to exclude unreasonable people from the conversation, but posting a sign, “No idiots allowed” doesn’t accomplish that. It may discourage people who disagree with you from posting, but only because they will assume from the disclaimer that you’ve made up your mind and that it is therefore not worth their time talking to you. This will occur independently of how intelligent their feedback is, in fact, I wouldn’t be surprised if there was some reverse selection here where the people who make low effort criticisms will comment anyway, but those who would make more intelligent criticisms won’t find it worth their time.