Yep, either the people at Nick are not picking these things up, or they've become more lenient.
Death of Yue, Tui (or La?), possibly Zhao, near genocide thanks to Jet
Hot Tub Scene
Suggestive Drill (in more ways than one)
Monk Gyatso's skeleton and others
Some pretty good kisses o_o
"Yuri" with Toph and Suki (nothing happened, but...)
Those are the only ones I can think of...