That account is used to scan our site by Google. It is probably listed more then once because they are scanning us with more then one bot at a time. I will look into it to check but it shouldn't be a problem.
The kintaf account is used for testing so I may have done that when I was making changes to the way the favorite page saves favorites recently. Also the spider may do that since there is a link on the page to favorite tabs when your signed in and the spider may just hit that link.
I see, it must have been the latter because I only noticed it the other day when that account fav'd one of my Death Cab for Cutie songs. I was just wondering for a moment if the bots were becoming aware and liked DCFC, in which case I, for one, would welcome our new Google spider-bot overlords.