I do not read much of Transformers fanfiction, so that more just confused me because they're still
robots, alien or not.
As for that shitty Team Fortress 2 fanfiction, "Breed," I started trying to read it, as did one of my friends. It is worse than the tags could truly indicate. And it turns out that sort of thing is common for the author when it comes to stories, when you look at what other stuff they've written. A link to their profile:
http://archiveofourown.org/users/Propernicethat/pseuds/Propernicethat
As for other shitty work, Primitive Liars is an Omegaverse Death Note fanfiction with 20% more SJW sperging, trans shit shoehorned in, and autism. By the way, this is the most popular work on AO3 for Death Note when sorting by the number of Kudos it's gotten (
1829):
http://archiveofourown.org/works/3907021/chapters/8743810