I am planning a brief visit to Toronto next weekend, and in the process of searching places to stay I found about 4 or 5 that seemed extraordinarily low ($89 or so). I also noticed that the same photos, or very similar ones, appear under other listings in different parts of the city, by other people--and they are all new listings.
I contacted one of the hosts to ask about it, and I was ignored.
If something's too good to be true, well, you know the rest, @Benjamin1080. I rarely book places w/o reviews, and as you've already got whiff of a rat, leave well alone.