Lol. Assuming you’re not trolling, I’d say yes, you have to be aware that any signal from you (including time spent watching each video) is analyzed by TikTok.
So what? I don't know what you are implying? So you never like videos of young women dancing? You go on TikTok and are very disciplined to only click on videos with CSS hacks or something?
I uninstalled it for two days, so I really don't have a guilty conscience of secretly liking young girls or whatever. It was ultimately just annoying.