One, yes, I was exaggerating, I was shitposting after all.
And two, yeah, Pomu has been a bit... out there for a while, and it's no surprise, her enviroament is VERY different from what she was used to, her fanbase is MUCH bigger and the level of love, appretiation and attention she gets, not only from fans but from others chuubas, is probably more than she ever experienced before.
Add to that the fact that she has gone though several life changing and stressful moments, her surgery, leaving her job, joining Nijisanji and connecting with people she admired, etc, and it's no wonder she is starting to change, stuff like that is bound to take a toll on people, especially since she seems to be the type to keep her problems to herself while also being very self-depricating (not a good combination).
And yeah, it's possible she was always like that, from what I heard from when she was Mint, she used to be more reserved to her audience in terms of her more darker thoughts and struggles and tried to not dwell on them too much, especially on stream, now with how different everything is, that's been changing (something I knew was bound to happen sooner or later since the very begginning) and she is becoming more and more open her chat, which let us see all of this.
Or maybe I'm just being a shizo and wasting my time on an anonimous image board while being pretty fucking sleepy, so who knows honestly.