These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Asspull: Thor's chameleon ability is introduced late in the series, and only used once for some inexplicable and seemingly senseless reason, and only after it was brought to his attention by the plot. It makes sense in the manga though it's mostly symbolic.
Foe Yay: Thor/Zagi, and to some extent Thor/Third as well.
Ho Yay: Mostly between Thor and Third, and Thor and Zagi. Several scenes are just dripping with subtext.
Zagi especially can't keep his hands off of Thor, especially in the manga (where the Ho Yay is so obvious that Karim gets jealous of Thor). Third prefers the "getting into his face" method.
Third. He's so blatant about it that Thor calls him out on it at one point, but mostly he goes relatively undetected.
Zagi. He's a lot more subtle than Third, but he's playing half the planet as his cards. It's especially evident in Death Game with his coup de'etat of the Blanc Ring.
Starboarding: Tiz loves Thor who loves Karim who loves Zagi who is obsessed with Thor.
Tear Jerker: "It was me who killed Karim. ... So if you want to hate someone, hate me. Keep on hating me... so you won't ever forget me."
Toy Ship: Thanks to the shortened lifespan of humans (50 years even in the most medically advanced colonies), people tend to start relationships early. Just before Thor and Rai were sent to Chimera, the average age for marriage was about 14.