Google trends explains my point better than I ever could.
https://trends.google.com/trends/explore?date=today%205-y&q=...
In any case, crypto has been established as short for cryptography for far longer than any of these currencies existed. It is used in this way as a distinguisher in many contexts (e.g. crypto-phones, crypto-locker, crypto protocols, ....); calling "crypto-X" just "crypto" is unnecessarily ambiguous.
(either...or it's some guys pushing their agenda very hard in the last few weeks)
Clearly, people do actually care about others trying to coopt well-established language for their often fishy schemes.
All I'm saying is: If you're going to try to tell people to not change the language as people seem to want to change it, because you don't want the language to change, then prepare for complaining for a long time with no results.
(Perhaps linguistic coherence is more than we should expect from the cryptocurrency community, given that they have already inflicted upon themselves the utterly bizarre usage of "blockchain" as a mass noun.)
it has probably happened through out history where well established names get hijacked when something else get picked up by the general population. e.g.
hacker vs cracker.
drones (rc helicopters vs pilotless aircraft).
I agree with your wider point, but the antonym of broadband in networking context is actually baseband.
'Narrowband' is a good example of a word that came into use to fill a perceived gap in the lexicon. A gap which didn't really exist, but the word became more widely used because it was not challenged by people who should know better.
Another example is 'bandwidth' which has so many colloquial meanings now that it is unusable in any general context. It's just a collection of letters that can mean anything you want. Also 'hacker'.
This is not the evolution of languge, it is its destruction. Overloading words with so many contrary or ambiguous meanings that language fails at its primary purpose of conveying meaning and intent.
Says who?
I imagine this is one of the ways in which language evolves, for better or for worse.