So, I'm doing a cleanup of old wallets ... and this one seems to have 5.725 BTC & BCH, currently worth a total of $48,977.83.

I think the "Blockchain pruning" project counts as abandoned by now:

> 8. Project abandonment - if sufficient time has passed (> 1 year), and I deem the project is abandoned by its originators and there is no interest to develop it in the community, then funds will be donated to a Bitcoin-related organization (e.g. developers of Bitcoin-qt, managers of bitcointalk.org, etc...). I will choose the organization/s, and will consult on this thread before doing so (but the final call will be mine).

I plan to take a couple of weeks to find a proper home for this money.
As it's been years since the bounty was started, I don't want to take any action to swiftly - I will give people a chance to voice in any issues they have.
Barring any concrete issues, the money will be donated to a relevant project within a couple of weeks.