Good point, but you could have as many swear words as you want in your page content.

What's relatively late? The 2600 vs Ford fuckgeneralmotors.com lawsuit dates back to 2001, more or less predating "serious" web apps (I don't have a better date for the end of the swearing ban, but it's been at least ten years).

Even then, there are lots of other TLDs besides ".com".