Interestingly enough, Yudkowsky probably uses these tropes deliberately. He himself is a reader of tvtropes.org[1], he's made explicit reference to using tropes before[2], and it makes senes that someone like Yudkowsky would know exactly which tropes he was and wasn't including.
[1] http://tvtropes.org/pmwiki/pmwiki.php/Creator/EliezerYudkows... [2] http://hpmor.com/chapter/7