Every time I add a comment, the exact same 3 people will "like it". I know that a human is not liking the comment themselves, it must be automatic within the app by the system. Does anybody else get this? Is it a bug with the app?

But I don't think it's a human, I think it's automatic/a bug. Because no matter when, day or night. Even if I add two conflicting comments, they like both of them. The same 3 have liked this post. Can you see that? Did those 3 human really like it?