It would appear that total users and 24 hour active users are the same for a lot of the smaller exchanges, but this is still a great resource to say, this exchange is bigger, or more active than another exchange. For Example, While I compared BitShares and Waves and found BitShares to be bigger, here he see that is confirmed, waves is 5/8ths the size of BitShares(CryptoBridge). We also see Bancor is 1/4 the size of BitShares, and Kyber is on the small side. I really like it when I have multiple independent data sets telling me the same thing as far as size and volume of certain exchanges.