I liked Abstract Daddys. They aren't annoying that all because they are few.
If SH2 had ADs every corner they will be a "pain" for any one who played. Like that stupid ghost.
In my opinion is the ghost who "break a little" the sensation of playing a Silent Hill game.
They just don't give us the chance to check every door, wall, trash can, cigarette butt, tile on the floor, etc.

For me it is a important part of SH. With the ghosts you just ran away half the game.(the fact that they hurt you just BEING there is irritant too).
"Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth. "
-Marcus Aurelius