From the pinned post in the asklemmy community:

"Please read the rules before posting!

This is not a support forum, this is to serve a similar purpose to AskReddit, meaning to ask users their opinions on things, about experiences they've had, etc."

That's mostly because the rules for the "ask" communities are meant to generate discussion. Simple questions with specific answers are not wanted. Philosophical, theological, political, and other subjective questions are therefore the questions being asked.

Let me see if I get your point. Are you saying most questions on Lemmy ask for opinions, which makes them look like they are asked to use for training AI models?

If so, I’m not entirely sure I agree. There’s tons of info online about any given topics, which can be very overwhelming. Maybe that causes people to prefer to seek out personal experience and opinions from others on such topics, rather than just hard cold facts.

It may also depend on which communities the questions you’re sampling are asked as well.

Answers can be googled but opinions are more subjective?

AI training data would want answers though not opinions.

I thinks most amswers can be found on a search engine. The opinion is exactly the added value.