I think for all intents and purposes this is a scam. How it is delivered is secondary to that.
As pointed out, scammers come in various guises. It doesn’t necessarily mean a psychopath has hacked in and is sitting at home in his sweaty underpants pretending to be Katie Perry or a slick organised crime ring is behind it.
This has all the hallmarks of a scam:
-Overly friendly frequent messages to quickly establish a close rapport and sense of security
-an unnatural amount of interest in your life; lots of questions about you. A Good Morning! How are you? every day.
-maintaining the “bond” by regular contact. For example if you went quiet or took time to respond you would receive an immediate nudge to resume chat
-pressure to send money very quickly after a bond is established
An influencer may have all followers siphoned to private chat to extract donations- overseen by staff or a bot with generic responses.
Once one donation is received, the person may be encouraged to set up a direct debit for example, or increase payments.
It’s also entirely possible to contact someone on social media posing as someone else. Even the URL can look correct.
Scamming is increasingly sophisticated and takes many forms.
All you can do is to remain guarded and look for the signs. They are always there.
That guarded approach applies to all social media- chat forums, dating sites, even notifications from official bodies.