Comment by dumbfounder

You are right, it doesn't seem like one, but to pissed off users it doesn't matter. If you, for any reason, piss people off to the point where they complain to your registrar or your hosting provider it is bad news. Doesn't matter why. So, the answer is to make it as easy as possible to get removed, which is why people use GET.

I have seen this with spam, and I have seen it with DMCA requests. My hosting provider will issue me a warning for any DMCA request that they will shut me down within 48 hours if I don't comply. Even when it is clearly not a valid request. Even when the content has already been removed. They don't even check, they just say "do it or else". And I pay them thousands per month. Godaddy is the same way, I have had people complain to them, and then they threaten to shut down the domain.

When you have been threatened repeatedly to be shut down for operating normally you don't take any chances. It isn't worth it.