I frankly think that regarding the score of your question as a true index of its reception by the community is a good mindset for users, but it's the result of time spent using the site. It's not something that a first-time poster will necessarily do automatically.
Consider the inverse: would a first-time poster feel "welcomed" if he received three upvotes but no answers and no comments for a week? (I think not.)
I believe "vote early, vote often" is the best approach, combined with a conditional "Add a helpful/welcoming comment if you can (assuming you can't just answer)."
The point is really: We welcome the new user, but only to the degree that they contribute and abide by the guidelines/rules. We don't welcome everyone and anyone who wants to ask about anything without even reading the tour page or doing any research. Otherwise we wouldn't have a community at all. So we express through voting what questions we think should be validated and what should not be. Applying a different standard to new users would be a version of "voting for the user instead of the content", which is frowned upon heavily.