I am also not a down-voter. IIRC the down-votes happened early on and probably after my comment, I guess some people felt that it is a trivial question and not suitable. If there hasn't been any down-votes after your clarification then I think you are probably reading too much into down-votes.
For you are looking for advice on how to avoid similar situation in future then
I also second Artem. Natural is not a well-defined concept. It is sometimes useful to ask for natural objects but there should be a reason why you are looking for a natural object. Asking for natural object in every question is not a good thing. You should have a good reason why you want a natural object and not an artificial one. In other words, when you ask for a natural object it would help to explain why you are restricting the class of objects to natural ones. The clarification of the intention would also help people know what you are looking for.
Another thing is that if you are revising your questions too often based on the comments it can be a sign that you are not spending enough time to think and formulate your questions before posting them. Maybe you should try to spend more time thinking about the kind of answer you are looking for and trivial answers that people might think are answering your question but are not really, and then write the question in a way that people are not likely to interpret it in a way that you don't want to.