Honestly, relying on any such work flow to find something as critical as visa requirements is insane. At least I wouldn't want to rely on some service which failed to detect that some Russian government page updated their web page and considers the page outdated. The page could still exist while incoming links are removed or similar.
I'm not saying this is perfect or it's all you need, but it's something.
To be honest, as someone who's done crowd sourced projects before this entire project sounds .... very difficult.
If it was my project, I'd have worked on these "crowd sourced" elements from the start, not as a "planning to do" - because I think the only way this will work long term is to get those right. And getting them right will be very difficult to do.
Also, I'd link to source material much more prominently. As a reader, I'm not inclined to trust a random unofficial page on the internet - especially on anything as important as Visas - so providing lots of links I can spent 10 minutes following up on to reassure myself would be great.
Oh, and big timestamps showing when a piece of info was last checked/updated.
Honestly, relying on any such work flow to find something as critical as visa requirements is insane. At least I wouldn't want to rely on some service which failed to detect that some Russian government page updated their web page and considers the page outdated. The page could still exist while incoming links are removed or similar.