There are many things that constitute to how a question is perceived. Your grammar, choice of words, formatting and what you intend. Here is an article that goes into how one can write a 'perfect' question.
A key point is
When a reader first sees your question, they're likely to be scrolling
down a list of snippets. The most eye-catching part of the snippet
will be the title - so use that text wisely.
and another is
The Golden Rule: Imagine You're Trying To Answer The Question
Once you've finished writing your question, read it through. Imagine
you were coming to it fresh, with no context other than what's on the
screen. Does it make sense? Is it clear what's being asked? Is it easy
to read and understand? Are there any obvious areas you'd need to ask
about before providing an answer? You can usually do this pretty well
however stuck you are on the actual question. Just apply common sense.
If there's anything wrong with the question when you're reading it,
obviously that will be a problem for whoever's actually trying to
answer it. So fix the problems. Improve the question until you can
read it and think, "If I only knew the answer to the question, it
would be a pleasure to provide that answer." At that point, post and
wait for the answers to come rolling in.
Nothing specifies being an expert, while there are professionals on the site, how can you tell them apart from say someone who started using Blender a few days ago? It's all in how you phrase your question and deliver it. Research your question before asking it and make sure you understand what you are asking so you can better explain it.