Obviously. But I was responding to "what is sinister about a GET request". To put it a slightly different way, it does not matter so much whether the request is a read or a write. For example DNS amplfication attacks work by asking a DNS server (read) for a much larger record than the request packet requires, and faking the request IP to match the victim. That's not even a connection the victim initiated, but that packet still travels along the network path. In fact, if it crashes a switch or something along the way, that's just as good from the point of view of the attacker, maybe even better as it will have more impact.

I am absolutely not a fan of all these "are you human?" checks at all, doubly so when ad-blockers trigger them. I think there are very legitimate reasons for wanting to access certain sites without being tracked - anything related to health is an example.

Maybe I should have made a more substantive comment, but I don't believe this is as simple a problem as reducing it to request types.