Any startup that has enough money to casually buy a two-letter domain name has too much money, period. Kind of like counting the number of Aeron chairs at startups of old. Not a good sign.

Looks like unregistered two letter .inc domains are going for $2300/yr. Certainly <5% of the cost of a single developer.

It's a .inc domain name, are those worth anything?

it's .inc... those aren't expensive