The checkmate was over how little the global ice has declined during the satellite era.
So not really a checkmate, more like a "well sure, it's declining like you said, and more than the minimum would suggest, but maybe not as much as some people think?" I think that's more akin to taking a pawn but losing a bishop.
As others have pointed out, being selective about the minimum or summertime extent vs. annual averages is just that - selectivity. The screen shot I took in my response to you was the period from 2012-2021, not a select 2016-2017 bit.
Here is your link again. Top chart, look at the 13 month rolling average.
Per the data you provided, global sea ice has declined since 2012. Has it declined catastrophically? No. But you clearly are suggesting it hasn't, and that's where you're wrong. There, and with your understanding of chess analogies.
Finally, while we don't publicly discuss moderation here, your portrayal of yourself as a victim is entirely without merit, and the reasons were explained to you at the time. Additionally, participation in any Internet forum solely for the purpose of posting in a single off-topic thread is typically a sign of someone who isn't interested in the community. Those members are likely to receive reasonable additional scrutiny. If you have questions about your moderation activity, please reach out in Conversations and I'm happy to clarify any misunderstandings.