I usually prefer to just put all the info up about something manually. It takes pretty much no time at all xD
I don't even see it being used /that/ often at the other site unless somebody is selling like 200 accounts and they don't wanna do something for each one.
Its not a matter of whether you post all of the stats still or not, because i still post all the stats...BUT what the account viewer does is give them a visual..visuals make it more appealing to the eye...this leads to higher offers and faster sales plus some people look for certain site even trophies and the account viewer makes that way faster to do..on top of that its a pretty easy thing to code and does help so why not do it