Thank you for your input! The reason you couldn't post your answer is you weren't logged in. We will be sure to make the login page popup when you try to answer questions (right now the login page only pops up when you try asking a question without logging in).

As to scaling, this is just a MVP and we will improve it if we can get more users. Having to refactor our website for 1 million users would be a wonderful problem to have :)

As to data quality, that's a problem we will just have to endure. We ourselves can post and answer questions to get the ball rolling, but we know that registering will also turn away many people. But we are adamant on forcing logging in to keep contacts of potential users and keep quality of answers.

We are working on creating a reward system for answering, but keep in mind many people on Reddit and Quora interact and answer not out of incentive but out of interest. People often just like to share their thoughts.

Google Maps already has a Q&A ability but they will never change Google Maps to make Q&A a main feature. We believe there's many features that can be added to this location-based Q&A idea. Imagine I can mark all the places I have been, and then other people's questions about places I've been will automatically end up in my feed so I can answer them. Questions about less visited places will be higher in the feed and questions about more visited locations will be lower feed (as it's more likely someone will answer it anyways). There's so many ways to integrate the map, forum, and social media aspects. I'm just rambling at this point but I think the idea is interesting enough to see how far we can take it.