I'm with you on that. I'm also someone who's been around since the old days of when she first started getting popular from her Toga cosplays. She's a completely different person from how she was back then. Like you said, she was really passionate about the cosplays and all the anime she was into and actually cared about building a community with her stuff. Hell, I even remember her answering some of my DMs once in a while.
Now it's like you say. She's just become another generic e-thot. She doesn't cosplay any more unless it's sponsored or if it's for her Fansly (which is overpriced as fuck, but that's a different conversation.) Her streams are just the dullest, low-effort "Just chatting" dredge where she gives a half-assed effort to talk to her chat while showing off her cleavage for 2 hours. She rarely ever even attempts to play games any more. Some people before were saying she got a boob job, and honestly it makes sense because that's the only thing she cares about showing off any more. Not to mention the standard thirst traps on social media.
As far as greed goes, I'm not even sure she does it for the money. She definitely doesn't make any real money off Twitch. But also, I'm pretty sure her regular job leaves her pretty well off. Though if she's squeezing extra hundreds, or even thousands out of simps on her Fansly I can see why she does why she does.
I guess it's just the fate of any attractive-egirl.