I don't know if this site gives notifications for each download, but if it does, and you've come to my profile to see what kind of unappreciative asshole couldn't even spare $2, I am not that asshole! I keep track of every single plugin I download, and am going to donate properly once my game is complete.
Initially I was donating the suggested amount per download, but it resulted in "paying" for plugins I didn't end up using, and I am not equipped to eat that cost every time something doesn't work out. Just know as a creator myself, it kills me to hit download without donating, but I will be back with financial reimbursement where it is due.