I often find myself looking for detailed feedback on an idea, or a landing page. A 15-min to 30-min meeting on an idea, a landing page, a set of features, etc.
But this is really hard to do, even with great communities like Indie Hackers and Product Hunt. I usually end up getting 1 or 2 brief comments, which may or may not turn into discussions. If those were 2-3 short meetings instead, I find it a lot more useful. It's also just better to talk to someone.
That's the idea behind https://development.kitchen/ . It's a place to trade feedback. You can describe what you want to meet about, and request a meeting. Or browse through other people's requests and when you find a match, you can schedule a meeting.
Note: This is a new iteration where a lot more of the functionality for actually creating meeting requests, setting your availability, and scheduling meetings is now live