I could spend hours just neutrally asking someone questions about a particular view they hold, why they hold it, etc. I think you gain a lot more insight into how people think this way than through an online forum.
I do.
Or your desire for an umbrella that doesn't break in the wind, or the best public estimate of when Starship will launch, or any of the myriad other desires that cause people to append "reddit" to their searches.
The only consistently good advice I see on Reddit is "call a local expert/call a lawyer." Anything else is almost certainly abject nonsense.
In Twitter you can follow people whose content you find useful. If you're a Blender user, for example, you can follow 5 Blender tech artists and your feed will be now full of cool tips and art.
With friends, with more or less the same skillset and hobbies as you have, you can ask them whatever you wanna ask. Heck, you'll learn a lot from them without even asking!
I'd just avoid using Reddit or forums to decide if I'm gonna use or buy something.
For example, if you ask what's the best OS on the internet, people will say Linux. Best DAW? Reaper. Best game engine? Godot. Best headphones? whatever is new and costs 100$ in Amazon.
Meanwhile, friends who make money and are in the industry and have businesses just prefer Windows, FL Studio and Unity. They aren't on the Reddit saying that the software or hardware they use - they just use them and make money. :)
The point you make about "professionals don't have time to use Reddit" definitely applies though. /r/synthesizers for example is a great sub if you want to spend thousands on hardware. Not so good for making real music! Although I do feel like there are a lot of Unity game devs on there. Maybe you just need the right community.
Walled garden is marketing speak. Don't use it. Use curated/controlled/whatever described the closed nature.
It spins what would otherwise be a negative term into one that gives images of delicious fruits, vegetables and beautiful flowers.
It's actually funny how much this is true. They used to be a quality source of info, but these days the default option is to show "all related" so you don't even get direct answers to the question you searched for, ads from top to bottom (and even somewhere in between) and just hordes of bots answering nonsense. At least they made it official with Chatgpt integration now lol.
It's not great for business stuff because there are way more people using e.g. AWS for their hobby project than running multi-million $ businesses on it.
What are the alternatives? Facebook and Discord are walled gardens. Quora is a shithole. The rest of the internet is blogspam and significantly more dubious than your average Reddit comment!