What does X22 + Scrypt mean (and why not "X23" if you're adding Scrypt to X22)?

Assuming you grab all the unique algos from X14 and X15, add in Scrypt, and you're at maybe X18 at best. A nice list of the 22 hashing algorithms being used would be good.

BTW, I want to just state that the "more is better" mentality of X11->X13->X15/X14 is not necessarily a good thing in my opinion. Each additional algorithm simply adds overhead and that can be a problem on servers (e.g. pools and exchanges).