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
In addition to spendy your bitcoin, you must have accumulated and hodl for a long-term in your portfolio and reached your over accumulation stage in other to have a good profit to spend at the end of the day, except you chose to be trading because of fear of the drop in the market price which they feel they might lose out if continuously holding for a long term.
But remember that holding bitcoin for a long-term without spending is responsible for the scarcity and increase in it's price that is make alot of persons wants to be involved In bitcoin, therefore buying and selling of bitcoin by everyone at the same time will not be good for the growth of bitcoin .