Earlier quoted context omitted.
If the squatters have to do that, then their squatting has no value to them. The point of squatters is to eventually sell the domain and if all the domains look "in use" (so no parking allowed), the amount of people sending offers will fall.
What a joke, within days of such rules being announced, a system would emerge to discover which domains might be willing to sell even though they would put up an “in-use” page.
And either way, even a bad countermeasure would be better than nothing, as it would show that squatting is not longer tolerated. It would set a precedent for stricter regulation later on, because as it stands right now, ICANN is actively ignoring the problem and happily collecting their 14¢ fees.
As for a better solution, first ban all advertisement of peer-to-peer sales of domain names (so only registrars may offer a domain for sale). That should improve the situation significantly.