This question, I did not receive an email telling that my bounty is about to expire in 24h, I use gmail, nothing in spam.

I have CS finals at university so I don't have time to keep checking this site, I don't have time to try solutions, the guy was lucky that I remembered to check that post, I rewarded him the bounty with 5 minutes left, without trying anything. He was lucky because I was on my PC, I couldn't have rewarded him anything on mobile app.

Also this question, I wasn't alerted.