Hmmm that article seems like a self serving one to benefit MoneyBadger.
HODL is a key strategy of literally everyone from single individual citizens with anything
from ~BTC0.001 upwards to various governments around the world. HODL has
been in existence since shortly after Bitcoin's creation and Bitcoin has not suffered
from anyone HODL'ing because not everyone HODL's every Bitcoin they have, I voted 'Both'
Cant compare Greshams law to Bitcoin really because it was a law made up
for FIAT. Michael Saylor would have something to say about that article!
HODL also includes moving, consolidation and transferring of Bitcoin and as you
say there will always be traders and gamblers so not every single Bitcoin should or will
be spent
I can honestly say that right now all the bitcoin ive ever spend or traded was a bad mistake and it would have been wiser to HODL onto it. Luckily for me I only have spent tiny amounts so it didnt have much of an effect for me