@GiantCowFilms part of that rubbed me the wrong way "especially women, people of color, and others in marginalized groups" I do not care if you are black or white, man woman, in some oppressed minority etc. If you write a lousy question, it will get DV and closed. Equally as true if that same group writes a good question, I'll UV it. If I know that answer, I might even answer it.
That is just how this site works, there is no racial prejudiced here (heck how are we even supposed to know who or what someone is. All we get is an avatar, a user name and a question.)
This question did not get closed and DVed because the OP is an oppressed hispanic woman. It got closed and DVed because there was no question.
I don't know. maybe someone out there goes searching to see if they can decipher a user's race, and then votes to close their post accordingly. Nobody does that!
Now if that does happen then that is a problem, and SE needs to do something to stop it.
But from what I've seen votes (DVs and CVs) are purely on the content. Bad questions, vs good answerable questions.
I have never not even once in over 4 years seen a single good post get down voted because of the OP's race, color, religion, etc.
YES new users can have a hard time with the site. True we (as established and regular users) sometimes do not make them feel welcome. Is there a problem here, yes. Is it only with the established users? I would say no. A site only has so many active users, and they just can't cope with the sheer volume of bad questions that come through.
After the Nth hundredth time we really just do not feel like adding a comment saying "we have no idea what is wrong, you need to add the details of X before we can even begin to guess."
There is a plethora of questions on the meta, and site metas about the site quality going down as the site grows. This issue of new users not being welcome is very much connected with the over all quality of sites degrading.
If we can "fix" new users asking BAD questions, then all the established users will be less worn out and be more friendly and willing to leave that helpful comment.
which in turn will fix the problem of new users not feeling welcome.