You can dismiss games from rating "forever". Does this remove games from the recommendations, like if you rated the game?
You would have to interact with the game to have it show up in your rating queue.
It would be expected behaviour, but who knows how the algorithm really interprets your interactions and recommendations.
Also, yes, do not rate games 1 star. In addition to being unfair if you do not honestly think it is a 1 star game, it might not do for your recommendations what you think it does. It might screw your recommended tags for example. Just because you have not interest in a particular game would not mean that you do not like the tags the game had in general.