A few points:
1. "The communities for BVI people are only a handful" -- why do you perceive a small number of communities as a problem?
2. "\[W\]e are proposing an app that is designed to be easily accessible" -- how will it be more accessible than Reddit? Facebook? Twitter? u/TechnicalPragmatist named several other communities.
3. "...not just a dot in a big picture." Finding r/Blind on Reddit--a community that is active and growing--is as simple as a google search. **Finding one app among the millions of apps in the App Store or in Google Play** isn't necessarily easier, especially since the app would have to be downloaded, learned, etc., before someone could determine whether it's worthwhile to use. And if you rely on word of mouth, well, sites like Reddit have already built up from word of mouth.
What would make your app **ten times better for BVI people** than Reddit, Twitter, Facebook, LinkedIn, and other social media sites? Because if it's not markedly better, it's unlikely to gain traction.
I understand this is a summer project, but your form mentions this is "an app we're thinking about," so there's still time to pivot before you start writing code.
**If two or three people who reply on Reddit say such communities you propose already exist, you've already got valuable feedback.** Listen to your prospective users! You're getting answers in greater depth than your survey will reveal.
$1 Folks here on r/Blind frequently get requests to take surveys. Please read this post:
$1Once in a great while a request to take a survey or answer questions about a product earns a lot of upvotes. Here's one:
$1John Gray of Netflix didn't really survey people: he started a conversation.
You may be required to create a survey for your course, but if you could engage BVI people in your community in one-on-one discussions, you'd learn a lot more. That can be difficult during the pandemic, in which case starting a conversation here on r/Blind is an alternative. Then after you've quickly checked--and invalidated--a lot of assumptions, you'd be in better position to craft a survey in which you ask not whether people want X, but whatever people want **most** of several features you've already validated as desirable.
Regarding your survey:
Your survey uses a 1 - 5 rating scale (a Likert scale) for which only the lowest and highest values have descriptions. That's common practice, but there are problems both in usability and in the validity of the data from Likert scales. For a more complete review of the problems of Likert scales, read the short (and cheap) but excellent book by Matthew Champagne called The Survey Playbook:
$1 You don't provide a means for people to give you their address for follow-up. A survey can be just the beginning of a relationship with the survey takers, who may later become app testers. Instead of collecting emails, you might ask for Reddit user names.
Finally, it sounds like your app is trying to do too many things: people can seek advice, give advice, OR connect "just ... to make friends." An app should do one thing, and do that one thing well.
Make sure you're making one thing people want, then put all of your effort into that one thing.
Good luck!