Just an image comment I think is what can cause annoyance. Because it gives an impression of a bot that doesn't care. I think with a few lines of text then an image and it wouldn't have been an issue. That extra care is what cause people to relax. Because it makes people feel not appreciated when it's just an image post. It looks more like self promotion.

It's not a black and white issue I see both sides on this platform. What you have to do with beginners is to guide them into showing them that it works when you pay attention and provide real value. If you set an example of giving 10X in value to someone then you will get the same back. Or at least you will get 1X back most of the time.