Great question! I would love to know too.

The email says that it Peerboard will shut down in June 2023

I wrote Mikhail and asked him the question regarding being acquired by Docebo. I'm also waiting for an answer.

Yes I would like to know this too. There is no mention of Appsumo users in the email. Just saying that annual subscriptions would be refunded. There seems to be no offer of any new subscription with the company that has takend over Peerboard. This is precisely what gives the lifetime deal offers a bad name.

Please reply Appsumo to tell us how you are going to deal with it.

Got this reply from peerboard

Thank you for your patience. We have been working on a plan with the
AppSumo team, and now we have reached an agreement regarding refunds.
Please email support@appsumo.com with your AppSumo codes for
PeerBoard, and they will assist you with the refund process.

Any updates here? Are they refunding to all the lifetime subscribers?

We recently launched on AppSumo so you might want to checkout https://appsumo.com/products/raklet/