Hi Sip,
May I ask you if you have any video or post to recommend about all the messy things about poppy? I really want to get into it after ink but idk any good source
If you type "Poppy drama" into YouTube or Google, you'll find quite a few video essays covering the various controversies over the years.
Edwin's Generation has a whole playlist on her (including one where he interviewed Titanic's brother). I believe Primink also made one, as did Gattsu and Vitaly, though, fair warning, Vitaly is generally more favorable toward her.
Just a heads-up: you'll probably have to sift through a bunch of Poppy Playtime results too. 😂
If you're looking for archived discussions, there are also Reddit threads and Lolcow forums that chronicle a lot of the controversies over the years.