Whilst 37signals does use this bit of creative IP to generate revenue, the page itself isn't actually the product - so copying it creates neither a reduced demand for the page itself or 37signals' services, nor does it impact their bottom-line in any obvious way (curebit and 37signals aren't in the same product-space).
Although the page itself is defensible IP for 37signals, the chances of them taking legal action on it (see above) is so remotely slim that it puts this whole thing into the realm of creative and professional courtesy rather than copyright infringement.
It's more like a stranger coming into the town saloon, getting drunk, and spilling his beer on the local bad-ass.
Although the page itself is defensible IP for 37signals, the chances of them taking legal action on it (see above) is so remotely slim that it puts this whole thing into the realm of creative and professional courtesy rather than copyright infringement.
It's more like a stranger coming into the town saloon, getting drunk, and spilling his beer on the local bad-ass.