On Foundation (~300 ETH of collector funds still escrowed in platform contract)
A lot of energy is going into archival: @jalilwahdat and other teams have done great work preserving metadata and assets (ipfs/arweave), rebuilding front to display these (@mpeyfuss) and more initiatives are needed to pin and store the ecosystem as standard practice.

One misconception worth pushing back on: the art (or at least the tokens) aren't disappearing. Figuring data that pertains to your art, should be part of your practice, and platforms to come and go is to be expected. Building independence and/or knowledge and control is healthy.

Almost everything minted on Foundation lives on contracts the creator controls: via Etherscan, Manifold, etc. To the exception of tokens on Foundation's shared meta contract: full creator control, art persists, indexable everywhere. If a collection isn't showing on OpenSea, Raster, etc., reaching out with the contract address is usually enough to get it indexed.

What does need addressing: ~300 ETH of collector funds still escrowed in Foundation's marketplace: bids, offers, unsuccessful auctions.
All recoverable today.

Collectors can check if they have any funds here → foundation-reclaim.vercel.app
Type a wallet, see reclaimable funds, scan the snapshot list.
The page also explains how to call the contract directly through Etherscan. Single function call. No approvals.
No surprises. You don't need the page to withdraw.
Broader point: learning Etherscan should be table stakes for any serious artist or collector.

Spent some of these funds on artists you want to support, platforms you enjoy (@fellowshiptrust, @verse_works , @raster_art etc)