If you're interested in the field, why wouldn't you answer the questionnaire? It costs you basically nothing while the upside is getting something that is potentially at least a tiny bit more useful to you than if you hadn't said anything?
It takes time and will likely be ignored.
Why would it be ignored? They're the ones asking.
would you write a response just to be read by an LLM?
Sure, I do it everyday when I chat with AIs. Humans not reading our exchanges doesn't bother me particularly.