I don't really understand what makes certain people qualified to weigh in advice on certain topics. For instance, (since this happens A LOT on here) someone posts about their troubled marriage and possibly imminent divorce, and all these people who have little or no experience start throwing around verses, and dropping input and advice. Really? If you haven't been there then you don't have a clue what it's like, and no matter how wise you think you are it's not going to change that, duh. Or someone asking for relationship advice and all these singles start throwing in advice...ummmm, you're single...
I guess there could possibly be an exception to the rule somewhere, but there aren't many. Just my thoughts
Hmm, I see where you're coming from, but at the same time, I don't think you have to have experienced something to have advice for it. I've never owned a horse, but I can tell you that putting it in a field with no water, grass, or hay is a bad idea. I've never been in a relationship, but I can tell you that premarital sex, abuse, pursuing marriage with an unbeliever, etc., are all bad ideas. I've never done drugs, but I can tell you that cocaine is really dangerous and shouldn't be tampered with. Stuff like that. Now, I don't know what it's like to have a horse, to be in a bad relationship, or do drugs, but that doesn't mean I have absolutely no grounds for advice.
It can sometimes come down to a root issue: jealousy, poor self-esteem, desperation, temptation, etc. just manifested different ways, and those are things that people can offer advice on due to the common root, albeit different experiences.
I do get what you're saying, though. Sometimes people butt in without knowing the full story, or think they know how to just fix everything with a snap of their fingers, or, like you said, just totally lack that experience/root.