[throwaway89201]

> It (the MD5 hash) might be published in the future when a thought's count passes a certain threshold (TBD). This might make it possible to recover certain short thoughts that were popular.

This makes little sense. Recovering a random preimage of an MD5 hash is marginally easier [1] than a (128-bit truncated) SHA256 hash, but this won't recover any sensible message.

Recovering a sensible (short) message is equally hard for both hashes.

[1] https://link.springer.com/chapter/10.1007/978-3-642-01001-9_...