Horses are physically incapable of vomiting fyi
Firstly, I assumed we were talking about the Republic of the Congo because I've never seen someone refer to the DRC as "the Congo." So my bad for that. If people from either Congo consider "the Congo" problematic, then fair enough, I understand what you're saying and I can try to change. I had always thought it was different from Ukraine in that "the" was intentionally left in the official name, similarly to the Gambia - which is also named after a river.
My bad, I've never seen someone call the DRC "the Congo" and I missed the broader context there.
The official name of the country is "Republic of the Congo." It is fine to shorten that to "The Congo."
I think to the Andorians, all human skin looks more or less pink because our blood is red. To us, all Andorian skin looks blue, but they probably see distinctions between the shades of blue that are significant to them. So it's just a matter of perspective. That's how I interpret it, anyway.
No, almost certainly not. Vampires are not actually real, as much as he behaves like one, and I doubt he has the capacity to make a self-aware joke like this. The image is also stamped with "r/totallyrealtweets" in the bottom right.