And then it seems like every once in a while, you get someone who really didn't know, hadn't heard, is horrified to think they almost did something wrong, and is so grateful that you spoke up. Which I think just encourages people to keep giving unsolicited advice. Of course, not all unsolicited advice/tips are bad--all the time we tell each other about something we saw on sale or something we tried that made us feel better, and people are often appreciative of that. So I think the line gets really blurry sometimes.
This was one of the first things I noticed about my friend/former co-worker Emma, that made me think there was something a bit odd about her. She mentioned wanting to join a gym but said she didn't know what exercises to do, and someone said, that gym has personal trainers, you can make an appointment with one and they'll walk you through some exercises and equipment. She'd never heard of such a thing, it just sounded perfect for her, and she was so glad they mentioned it. Really made you feel like you'd helped her somehow.
Two days later, she was talking about the gym again, making the same comment about exercises, and a different person--who hadn't been there before--suggested the personal trainer. And Emma gave the exact same reply of gushing gratitude, she'd never heard of such a thing before, it sounded perfect for her, etc.. I happened to be there for both conversations and it just struck me as so weird--did she forget she'd just had that conversation with someone else two days earlier? Why didn't she just say pleasantly, "Yeah, that's been to suggested to me, did you try it personally? How did it go for you?"
So in the moment the person giving the advice felt really good about themselves, but when you were around her for long enough, you realized you couldn't trust her responses to be accurate. Or maybe it was her memory, it was hard to tell, and extremely frustrating in the long run as I was assigned to help her with a project she wasn't suited to, and I ended up repeating a lot of professional advice/instruction that was not followed. I'm sure she was just trying to be polite and pleasant, so to me it's an interesting case of politeness backfiring, in a sense.