I would like to see more nuance in the proposal.
If the player account has had zero activity for that period of a year, then sure, that claim should probably be forfeited but only if that account also has ZERO SPS staked or liquid on their in game account.
This would mean that they have never interacted with the SPS governance system and are likely not to be interested, therefore, sure.
If they have made a claim in the past, I would be not keen to disallow this accounts from making future claims.
Edits in italics.
As one of the main proponents of this proposal, the main objective is to not have to maintain millions of data records in perpetuity - as most of these claims are likely from dead accounts, Splinterlands assets held outside the game by people that never played, etc. Most people that were active participants in Splinterlands have likely already claimed their air drops, at least before the Tech Modernization of the SPS page removed the buttons. Hopefully this proposal, and adding a link back in, will give anyone that is still actively around a chance to claim any that they missed. I think it was an oversight to not have an expiration date on the initial air drop claims in as part of the initial white paper and to me it makes sense to just have a cutoff date where the SPS air drop data and code can be retired.
Thanks for the reply and casting some further light beyond the "we want to turn it off".
I too agree that it would have been a good piece of documentation to have in the initial claim / plan.