Not true. See this:
http://cyber.law.harvard.edu/property00/domain/legislation.h...
(The definition I gave is actually more broad.)
I agree that you are right with that statement. I don't agree that people are well informed about this enough to know that that the statement is wrong.
That belief is something that comes from the days of a few bad actors (panavision and mtv domains come to mind and some others) that made the practice which is now called cybersquatting what it is instead of what it should be based on. And by the way even the current definition was shaped by Intellectual property lawyers as a totally one sided law brought about to protect the interests of a certain class of owners. (As was UDRP process for that matter).
But yes that is the uninformed view of most people. Just like many ordinary people associate the word "hacker" with "bad" and not "good".
As has been pointed in another reply, people buy things all the time with the intent to profit from the sale of which they do not use. Since the beginning of time this has not been a bad thing. And why should it be? (Not to mention the fact that there are alternative TLD's it just happens to be that .com is the ubiquitous one.)
It is considered to be good to buy things that you don't intend to use to resell them if you are adding some kind of value in the reselling; for instance, people who have a local retail store, who are adding the value of being close and convenient, rather than having to go all the way to the producer.
Domain squatters are adding no value. If you just buy a whole ton of domains speculatively, and then sell them off at high markup because so many domains are gone that it's impossible to find good ones, you are adding no value, you are only taking advantage of an artificial scarcity for your own profit.
We have plenty of other negative words for this kind of behavior in other domains. Ever heard of a scalper? There is really no significant difference between a domain squatter and a scalper; they are just people who induce artificial scarcity and use that to run a profit without actually adding any real value.