Devil's advocate: there are some conclusions to be made from someone's level of personal grooming, etc. Grooming = sign of mindfulness. If you're willing to make that - token, mind you - investment, folks get a message that you are interested in others' opinion, and that your wonderful solution was built with someone's specific problem in mind.

The general underlying point is that there is a deluge of ideas, features and suggestions, and folks put up filters like the above to sort them out. The unfortunate flipside is that some filters are more arbitrary - like the prestigious school prejudice.