In fact, exact title searches will usually not turn up videos with that title unless you use quotes. YouTube will return clickbait and Jimmy Kimmel, entirely unrelated to the search, for exact title searches of videos with only a few tens of views.
YouTube is better off with meta tag recommendations instead of their fancy little AI.
I sort of feel like their recommendation AI is a bunch of if-then statements designed to funnel you into more heavily-monetized content if they think you display any interest at all.
I'm a guy in my 30s. Nothing in my view history ever says, "Hey, this guy is progressive enough to wear makeup." At that, I watch english, polish, and french videos. Ads I get, Spanish. I dont know spanish. I'd accept general language learning ads. But tostitos and I think one was health or house insurance... in spanish. It's like the ad bot is some redneck that thinks there are two languages, American and not-American.
The recommendation bot and ad bot are just terrible. The moment theres a half way decent competitor to youtube, my ass is jumping ship.
Reality TV recommendations... Jersey shore... celebrity gossip...everywhere...it took 2 weeks to disappear. Strep throat is cured in less time than contracting celeb gossip videos.
Your recommendations may return to normal.
Although one person did complain Google closed his account because he used that app: https://news.ycombinator.com/item?id=21247759