The hype is more warranted here because I think material and physics scientists are excited and publicly and clearly skeptical.
There is a wider knowledge that this may be nothing or somewhere in between. The rollercoaster following the developments is why the wider public is enjoying following it as science entertainment.
On Twitter it seems like crypto bros are trying to scam with a LK-99 coin.
AI/ML crowd is pondering what happens to computing power in 5-10-15 years if LK-99 is proven applicable to advance current technologies.
There is a large mix of aspirational futurism and a lot of tempered real science going on here.
All in real time, on active, Twitter, WeChat/Billibili(?) etc
Theranos had very little external hype. No one talked about Theranos until it blew up, outside of pretty niche fields. The founder tried to build some hype but it was still a pretty typical "tech startup founder hyping themselves up" type of situation
LK99 is an incomplete paper that someone posted to arXiv.