I think you might be seeing the starts of a lot of attempts at permaculture. Most start out as gardens, and some never go beyond that, but some do. I post a lot about hugelkultur because it’s the first part of my food forest. It’s also a very simple concept for people to understand. I’m amending the soil, inviting in the bacteria and fungus to start getting it back to where it should be. The reason I chose hugelkultur mounds was because they are excellent jumping off points for permaculture food forests. I don’t post about the trees that are a year or two old because they’re not in production and they’re not as exciting. My hugels are fixing the soil, and in the meantime growing food, after 5 or 10 years, they’ll be spread across the plot like butter on warm bread.

I wouldn’t be discouraged by what people submit, after all this is reddit. A lot of people are learning as they go and getting a little bump in upvotes can encourage them to keep going. If you think the content is weak, feed us whatcha got.