It's hardly applicable to everything and you know it. You can throw a temper tantrum about it, but it's pretty obvious that you don't have to be a psychologist to have an opinion on moods. However, there are topics where professional expertise is required to give advice on. I don't like relationships, but sometimes I can still offer my views and opinions on it. However, I don't offer advice on handling firearms even though I know how to work pistols and rifles.