Why nobody talks about the "doghouse"?

[Yashikov]

Playing Hl2 I more and more often start looking for a details in the game: old textures on some characters, some curved moments. But that begin from "East Black Mesa" chapter, when we met IT

[The Renegadist]

You are mistaken, that is the dochouse as in "Hey Doc."

[Yashikov]

You are mistaken, that is the dochouse as in "Hey Doc."

But why "it" is here? - that's a main question, and I can't find an answer on it

[Yashikov]

That's another reveal of the [DOG HOUSE]