I know it's been mentioned before, but it doesn't get a lot of traction because everyone's renewal date is different.
For two years in a row, my AW (where I refer most of my traffic through my own marketing efforts) has been suspended for a few hours because of the automatic renewal not going through. Last time, it was because I cancelled a credit card and forgot it was the one on file here. This year, it was because my CC company issued me a new card after fraudulent charges appeared on my card.
It would be extremely helpful if FAA could send out a renewal reminder a week or so before the automatic renewal. This would give us time to double check our credit card information on the site and avoid the downtime. Since the renewal is automatic, it seems to me that an automatic reminder would not be difficult to set up.
My renewal got rejected at 5am my time. I didn't find out about it until after 7am. My AW was down for over two hours, needlessly. One little auto-reminder email and it could have been avoided.