Is there a name for an algorithm that looks at various statistics and generates a score between 1-10? Much like http://www.coingecko.com does with the various cryptocoins? How do these algorithms work?
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Any algorithm or formula that generates an arbitrary score can be put on a range like that. just take the biggest value and measure the others relative to that. It seems in this particular case they're not getting 100% in any factor so they may be just comparing it to historical high (that would explain it but it may be other thing).
Then, you can make it as simple or as complicated as you like. For example 1 plebbit comment add 1 point to the score is a possible simple algorithm for measuring popularity