A ☆ rank tier sounds similar to New Game+ in many RPGs, where you take your money and weapons from a previous file into a more challenging 2nd playthrough.
And, S+ is by no means the skill ceiling. I am S+ but I know a better player when I see it. S+ has a ridiculously diverse amount of skill levels between people in the rank, and I am for sure in the lower end of that.
I think this would be a really cool idea to reward skilled players for their hard work in climbing the ranks. Assuming by "reset," you mean, after you reach C☆, you can no longer rank back down to S+, that would alleviate a lot of the anxiety I have in playing S+ solo queue for fear of hitting a losing streak and a ton of progress I sweated and struggled to attain. And also, incentivize reaching S+99 for more than just bragging rights. I'm at S+84, and havent played solo queue for months. I'd love it if there was a reason for me to risk my rank to get those last 15 points, a reward to strive for, and more competition awaiting me on the other side.
Honestly this seems like one of the coolest ideas for Splatoon I've heard in a long time. Kudos to you
@girigiriHERO