To make it short, I think we should add more sub-categories under the “Scam” category.
The current ones:
There are some important types of scams that these sub-categories miss, such as:
「いいね！」 6
Retail Scams?
One example is those fake puppy sites, or scam pharmacy websites.
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good idea to add some.
not sure if it’s covered by the crypto-scams sub-category but investment-scams are flooding (especially the EU) lately.
long story short:
you can earn tons of money if you register to a website, you will get a call from a call-center asking you to invest (then you will be pig butchered).
reporting these websites can be very useful to interrupt these scams.
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since I am a board member, here’s the “retail” category now:
we need a place in there for recovery scammers on all platforms
About the Nonfulfillment Scam category Check this!
These should be covered here 
About the Pig Butchering Scam category