…Are you going check portfolios and credentials before taking into account any feedback?
Guess what? You’re designing for the world, not for a group of expert designers, therefore, you should take any constructive feedback as an opportunity to improve your work and to grow.
…(product, engineering, marketing, etc). What they often don’t realize is that it’s their own fault. It’s a designers responsibility to set up the conversation so the scope of feedback is valuable to them at a given point in time. Critiques force designers to do so, but in a safer space than an evaluative presentation.