You know, that’s a great point. I notice these things because I work with words, but I think you’re right. The majority of people probably don’t notice and don’t care. And whether it affects them subconsciously is something that’s so hard to validate.
I’d like to think that all these little design details add up when forming an opinion about a brand, but to be honest, many of these ideas are just hypotheses, not hard scientific truths.