This is a problem related to the member viewing experience.
When they are on Members Gallery, lets say:
If they click on "m" in alphabetical list, it will show all galleries under username initial "m". But these are ordered by Date Newest First.
If they then click on the drop down menu, and select "alphabetical order" they expect to get all "m" members by alphabetical order, such as "ma...", "mb...", "mc....", instead they got all by alphabetical order from 1 to 9, then a to b.
So if you want to look up some username "mqma" for example, you won't be able to find it unless you go through all the gallery listing.