HN didn't fall victim to the reality tv star's antics. The audience he's trying to impress has fallen victim to the believe that the antics of a reality tv star make for a good president.
Hacker News has most definitely fallen victim to the antics, given how many times said antics have popped up on HN recently and have been flagged. I'm flagging these posts and I will keep flagging them too
e.g.
https://news.ycombinator.com/item?id=43198759
https://news.ycombinator.com/item?id=43121467
https://news.ycombinator.com/item?id=43110333
https://news.ycombinator.com/item?id=43033493
https://news.ycombinator.com/item?id=43033275