When I first began editing this wiki, I made a few hasty conclusions that were more speculation than fact, and I understand why they should not have been included. However, I do believe that there is a decent amount of evidence to support the fact that AS is the one speaking to us through the typewriter in The Room Two - The Seance.
First, there is the theming of the room to take into account. The Seance is set up so that the player somewhat follows the actions that Maggy might have taken during one of her spirit medium acts. As we use the tarot reading machine, the room reacts in a way that one would expect it to react during a seance: picture frames fall off the walls, things are knocked over, the lights flicker. The typewriter represents messages from the deceased spirit that we are “contacting”. It is unlikely that it is really a ghost in the sense that Maggy might have believed, and more likely an illusion caused by the Null, but the idea is what’s important. We are using the equipment in the room to contact a spirit on the other side.
With this in mind, it is important to remember that the level more or less ends with us discovering the body of AS at the table. The photo in the cabinet is of him before his death. The corpse is found after the photo is complete, sitting in the same pose and holding the same pocketwatch. During the effects of the seance, we also are able to see a flash of the same figure wearing a top hat, a “ghost”, standing in the corner. His death is the subject of the level, and he is the one we’re trying to contact.
Finally, the story given by the typewriter seems to match up with what we know about AS. He was a researcher led astray on a journey that took him far from home. He was able to extend his lifespan for a time, but eventually had to meet death, there in the seance room. The easter eggs for this level appear to indicate his identity even more clearly. When the player types “AS”, the typewriter responds with “Am I the player? Am I the prey?” Notably, the typewriter refers to itself in the first person here. AS is also not listed as one of the “others” that travels through the Null when, presumably, he should be. The typewriter also has knowledge of the Circle when asked about it, just as AS would, and seems to share his attitude towards them.
In conclusion, I don’t think it is that much of a stretch to conclude that it is AS that speaks to us through the typewriter. I think it is what the designers intended for us to believe, and therefore fair to include it in the wiki.