Aside from humans and bots, there could be other things on the Internet. Maybe aliens or something else about which we don't even have a clue?

I didn't doubt that from the start.
But, I am also not one to feel there are aliens among us. So I am likely to find your posts about such things smile worthy.
That being said, if there was 'something else' here, why would it matter any ore than anyone else? If there were aliens present would that change anything in your behavior?

Knowledge is the first thing.

@Riemann: If they are aliens, and they are here. we were fucked before we even knew it, if of course that is their intent. Their knowledge, the mere fact that they are aware of us and we not them, make them on top already.
There is nothing they would not know because they are already the un-noticed observers while we shower and eat our Wheaties.
Unless you mean them being here is new, they just got in and thought they would catch up on our gossip, poor grammar and simple ideas. You're right. you should mess with them.