It seems like any platform that features link aggregation is soon overrun by bots and self-promoters trying to drive traffic, and pages and pages of link posts versus pages and pages of people talking.
Are there any lemmy instances or other defederated networks that focus on Q&A, niche communities, and people conversing, instead?
I noticed that beehaw.org on average has more “normal posts” (not links) than other instances. I found communities there for the topics you are interested in like technology, politics and parenting. It’s not completely link-free, but I’d say there are fewer links than elsewhere. That’s the best I could find on the Fediverse. Maybe someone else has better suggestions.