Hi! I never post in here but I find this discussion interesting. I have met quite a few pseudo-poets, it should be a skill listed for my degree, really. I have read so much worse than those verses Dan made (that doesn't mean I think Dan is a poet at all)but the thing is I actually found them OK, they didn't make me cringe.
The fun thing about poetry is that it can be whatever, we have calligrams (Apollinaire, Tablada), dadaist poetry (Literary Collage), slam poetry /spoken word (listen to Europe is lost by Kate Tempest is amazing), automatic writing (within surrealism), and a big, etc. So there isn't a right way to write poetry and knowing all the options might even make it more tempting to try, is a good way to let out your thoughts, romantic or political or existential, the important thing is to find new ways to let people see the world through your eyes. Sometimes the words are right and they cause the -oh so craved- cathartic feeling, other times you end up with a cringe-fest.
That said, I don't think Dan would publish a poetry book. He wouldn't be the first youtube personality to do it, Connor Franta's note to self comes to mind, but I can't see Dan publishing something like that. Poetry doesn't have to be personal or confessional but I think a lot of people don't know that in poetry lyrical I and the author aren't the same entity. so it would mean that everything Dan writes would be judged and analyzed as literal and completely true to himself, which is not fun and would require a lot of vulnerability.
In conclusion of this long-ass pointless post, I don't think his verses are cringe -they feel like a love letter to urban life, I would be interested in reading a poetry book around that topic- but I don't think the secret project is a poetry book, I actually have zero theories about it I just hope whatever it is he's proud of it