When Satoshi Nakamoto put it on this list
No.
is to fool people with this stupid article and make them donate.
Trolling is profitable in these days of Eternal Spring.
though some are borderline insane, and some have gone well beyond that...
Who are those people Mr. '...', or are you too coward to speak that, to debate what exactly is some really insane things in this world?
I think most of the people on this list are currently against bitcoin.
Not private, not fungible, not a p2p electronic cash system. It doesn't meet some of cypherpunk qualifications, which may be why Satoshi worked it on Metzger's list full of statists. Even His Highness Wright says Bitcoin is friends with the State.
Ponzi-style investment
Ponzi has nothing to do with Bitcoin, only morons try to make that argument.
it wastefully turns a whole lot of energy and other resources into nothing useful
Same with this argument. Debunked, thoroughly, repeatedly, by many.
no mechanism to refund fraud or error
Sounds like a personal problem, so get off non-repudiables and go use any of the 1000's of GovCorp babysitter coins, including the apparently still beloved Fiat.
no longer seen as a thing to be admired?
Bitcoin's protocol is baked, any admiration is a historical remembrance now, in time new protocols have more potential to usurp the front position.
agenda a better purpose.
Hardly better purpose than develop a p2p cash that works and is not subject to the State. BTC is not those, yet there are probably some potential candidates out there.
Though I do wish I had bought some bitcoins early on ...
If Bitcoin-BTC survives in top-5 it will likely hit at least 4x somewhere before it's 25th birthday. It's main challenger is it's own deprecation. Buy it, or not.