I was afraid this would happen... The Strike wasn't because of a video in particular, but rather because I made the mistake of linking a URL to iwara, a pornographic MMD website in the description of a new video.
I did it simply because I was crediting an artist that made the model featured in the video, it was the page where the original model was shared, and I didn't know it would violate YouTube's policy on Nudity and Sexual Content, though I guess I should've known?
I've removed the "offending" URL and submitted an appeal, though I doubt YouTube will accept it... Looks like I won't be getting monetized anytime soon (at least not for 3 months, if my appeal is rejected), and right now I'm just praying to god this doesn't lead to another Strike or my channel getting terminated. All those years of work would've been all for nothing...