Again, having read your comment and that of @DaveTMG previously, I suggest we remove your accounts from the group of free share testers for now.
I do agree on how personal the preferences are for notifications, and we will add more control for the handful of notifications we ever send. Bear with us, we’re still a small team.
You get your free share invite about once a week, and not at a consistent time. So, I find calling a heads-up about your free share as “spammy” strong to be honest. We put our resources into developing and improving free shares, so our community gets value, not advertising companies.
Yes, we’d like you to know when you earn one, especially as future iterations may delete the invite over time if unused, as we don’t want it to clutter your screen and your life if it’s not useful to you.
I do think not being in the tester group is the best solution here for the time being. Sounds fair? Please DM me.