I saw this exact same style of bot account years ago on Tumblr. They always follow the same naming scheme: one word or two words combined and then a string of 4 digits. I bet if you go to any of their profiles, you'll find like 4 comments that are all copied from old threads and a bunch of upvotes on completely random subs, possibly even all of them being on other bot accounts' posts and comments.
The real question is whether they're being used to fake activity on Reddit, sway public opinion by posting this sort of political slant, or will they later be used to advertise scams and this is just to make them seem legitimate.