Ask HN: Issues with ccTLDs?

I'm planning on registering a ccTLD for my next project. Specifically, I'm considering a Burundi (.bi) domain, one of the poorest countries on Earth.

As a result, I'd like to ask HN what concerns there are with registering a ccTLD. I'm looking for common "gotchas" that I might encounter. What's the stability of such domains (.ly seems to have survived a civil war)? Anyone have any experience with Burundi (.bi) in particular?

Just looking for what issues I need to research before I register. Thanks.