some of those "old people" are the reason you have those computers and other devices you use for building your content and for submitting these applications.
Where did you find these folks? They have absolutely no presence other than their website, which is highly questionable. Find a legitimate organization.
perhaps it’s because there’s a Facebook group called “visa advice”. I fail to comprehend why people are on a group with such a name if they are going to complain about people asking for visa advice.
What kind of work does she do? That would help. Also, have you looked in places like LinkedIn to see if there are any U.S. jobs looking for someone who speaks Thai and English (& might she speak any other languages?)? She might be able to get sponsorship if she finds the right job first, especially if she finds a job where they need someone who speaks languages. I know someone who came to the U.S. from Singapore, because he spoke Thai and Chinese, to work for a Free Trade organization. You never know what you might find.