In the forms, we require bitcointalk username, bitcointalk profile url, and bitcointalk application post number (the one in the upper right corner of every application).
I agree, they might apply with another person's account, and that has happened before in many campaigns, but there's over 5000 Brand New accounts, with 0 posts, that have "last active time" only few hours after their "create time", so it's pretty clear what they are.
No, it's not clear at all, definitely not enough for a nuking or negging. Your thread doesn't even have 5000 posts so it doesn't make any sense.
BTW the post number can change if anyone deletes a post. Don't use it for verification like that.
Like i've edited in my OP
EDIT: After checking some random accounts, it seems many are OLD accounts that were never used. So my guess is someone has a list of accounts dating back all the way to 2014 and is using them for signups.
Edit: Changed the title to reflect the bigger issue, fake accounts and old accounts used to scam bounty projects