streak
I don't want feedback about my "streak". It is an annoying, unnecessary pop-up. I also don't like to be solicited to "catch up". I want to manage my own mailbox without intrusive oversite. If I get close to overfilling my mailbox, fine, but everything else should not be your concern.
4th
ranked
Yes, we launched a fun way to reward our users for reading and organizing your emails, but you do not have to participate. It's not forced. Friendly reminder to always check your Settings. You can disable Streaks under your notification settings. Thanks.