Lol maybe it was just someone who had a lot of quick trips or split stays the year they ran the promotion. We got them for both portions of our split stay in early 2015. We took my inlaws and it didn’t make any sense to give them
DVC magic band sliders (Disney sent them for all of us with both magic band sets). Unfortunately over the past 3+ years they have slowly disappeared (mainly because my son likes to wear them and then lose them). I could easily see how someone who traveled a lot that year (especially 1 night stays) could have accumulated quite a few since they appeared to be sending one for every person in the villa. This was before you could decline magic bands so they would mail them out to you even if you didn’t need/want them.