I still saw many inactive account for over 3months in this list https://dl.dropboxusercontent.com/u/21000833/Bitsend/Giveaway%202016/Giveaway.txt why not just remove them from airdrop list? anyway I can help to find these inactive account well honestly I like if my shares become bigger with these inactive account removed lol
I don't know why i'm on your list.... But of course i'm not inactive as anyone can verify. Rather that this i'm also partecipating in Bsd project with translations.
Your purpose is right but probabily you shoud revise your criteria.